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Dublin Assay Office
The Dublin Assay Office was established in 1637 to supervise the assaying of all gold and silver throughout the whole Kingdom of Ireland, when the Dublin Company of Goldsmiths was founded by royal charter (13 Charles I), re-establishing the medieval Guild of All Saints. Initially, hallmarks consisted of the goldsmiths' proper mark which was the maker's mark originally used to identify the silversmith or goldsmith responsible for making the article. The fineness mark, the crowned harp, was applied to 22 carat gold and sterling silver, which was silver of a standard of 925 parts of fine silver in each 1,000. In 1638 a date letter system was introduced and used in conjunction with the above marks. This date letter denotes the year in which the piece was made or hallmarked and is changed on 1 January each year. A new mark in the form of Hibernia was introduced on 25 March 1730 to indicate that a duty had been paid on all articles manufactured on or after that date. The Hibernia m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metallurgical Assay
A metallurgical assay is a compositional analysis of an ore, metal, or alloy, usually performed in order to test for purity or quality. Some assay methods are suitable for raw materials; others are more appropriate for finished goods. Raw precious metals ( bullion) are assayed by an assay office. Silver is assayed by titration, gold by cupellation and platinum by inductively coupled plasma optical emission spectrometry (ICP OES). Precious metal items of art or jewelry are frequently hallmarked (depending upon the requirements of the laws of either the place of manufacture or the place of import). Where required to be hallmarked, semi-finished precious metal items of art or jewelry pass through the official testing channels where they are analyzed or assayed for precious metal content. While different nations permit a variety of legally acceptable finenesses, the assayer is actually testing to determine that the fineness of the product conforms with the statement or claim of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingdom Of Ireland
The Kingdom of Ireland ( ga, label=Classical Irish, an Ríoghacht Éireann; ga, label= Modern Irish, an Ríocht Éireann, ) was a monarchy on the island of Ireland that was a client state of England and then of Great Britain. It existed from 1542 until 1801. It was ruled by the monarchs of England and then of Great Britain, and administered from Dublin Castle by a viceroy appointed by the English king: the Lord Deputy of Ireland. It had a parliament, composed of Anglo-Irish and native nobles. From 1661 until 1801, the administration controlled an army. A Protestant state church, the Church of Ireland, was established. Although styled a kingdom, for most of its history it was, ''de facto'', an English dependency.MacInnes, Allan. ''Union and Empire: The Making of the United Kingdom in 1707''. Cambridge University Press, 2007. p.109 This status was enshrined in Poynings' Law and in the Declaratory Act of 1719. The territory of the kingdom comprised that of the former ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallmark
A hallmark is an official mark or series of marks struck on items made of metal, mostly to certify the content of noble metals—such as platinum, gold, silver and in some nations, palladium. In a more general sense, the term '' hallmark'' can also be used to refer to any distinguishing mark. General overview Historically, hallmarks were applied by a trusted party: the "guardians of the craft" or, more recently, by an assay office. Hallmarks are a guarantee of certain purity or fineness of the metal, as determined by official metal (assay) testing. Distinguishment Hallmarks are often confused with "trademarks" or "maker's marks". A hallmark is not the mark of a manufacturer to distinguish their products from other manufacturers' products: that is the function of trademarks or makers' marks. To be a true hallmark, it must be the guarantee of an independent body or authority that the contents are as marked. Thus, a stamp of "925" by itself is not, strictly speaking, a hallmark, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goldsmith
A goldsmith is a metalworker who specializes in working with gold and other precious metals. Nowadays they mainly specialize in jewelry-making but historically, goldsmiths have also made silverware, platters, goblets, decorative and serviceable utensils, and ceremonial or religious items. Goldsmiths must be skilled in forming metal through filing, soldering, sawing, forging, casting, and polishing. The trade has very often included jewelry-making skills, as well as the very similar skills of the silversmith. Traditionally, these skills had been passed along through apprenticeships; more recently jewelry arts schools, specializing in teaching goldsmithing and a multitude of skills falling under the jewelry arts umbrella, are available. Many universities and junior colleges also offer goldsmithing, silversmithing, and metal arts fabrication as a part of their fine arts curriculum. Gold Compared to other metals, gold is malleable, ductile, rare, and it is the only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fineness
The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of ''fine metal'' therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass. Various ways of expressing fineness have been used and two remain in common use: ''millesimal fineness'' expressed in units of parts per 1,000 and ''karats'' or ''carats'' used only for gold. Karats measure the parts per 24, so that 18 karat = = 75% and 24 karat gold is considered 100 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carat (purity)
The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of ''fine metal'' therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass. Various ways of expressing fineness have been used and two remain in common use: ''millesimal fineness'' expressed in units of parts per 1,000 and ''karats'' or ''carats'' used only for gold. Karats measure the parts per 24, so that 18 karat = = 75% and 24 karat gold is considered 100% gol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sterling Silver
Sterling silver is an alloy of silver containing 92.5% by weight of silver and 7.5% by weight of other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. ''Fine silver'', which is 99.9% pure silver, is relatively soft, so silver is usually alloyed with copper to increase its hardness and strength. Sterling silver is prone to tarnishing, and elements other than copper can be used in alloys to reduce tarnishing, as well as casting porosity and firescale. Such elements include germanium, zinc, platinum, silicon, and boron. Recent examples of these alloys include ''argentium'', ''sterlium'' and ''silvadium''. Etymology One of the earliest attestations of the term is in Old French form , in a charter of the abbey of Les Préaux, dating to either 1085 or 1104. The English chronicler Orderic Vitalis (1075 – 1142) uses the Latin forms and . The word in origin refers to the newly introduced Norman silver penny. According to the Oxford ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish Free State
The Irish Free State ( ga, Saorstát Éireann, , ; 6 December 192229 December 1937) was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-year Irish War of Independence between the forces of the Irish Republic – the Irish Republican Army (1919–22), Irish Republican Army (IRA) – and The Crown, British Crown forces. The Free State was established as a dominion of the British Empire. It comprised 26 of the 32 counties of Ireland. Northern Ireland, which was made up of the remaining six counties, exercised its right under the Treaty to opt out of the new state. The Free State government consisted of the Governor-General of the Irish Free State, Governor-General – the representative of the king – and the Executive Council of the Irish Free State, Executive Council (cabinet), which replaced both the revolutionary Government of the 2nd Dáil, Dáil Government and the Provisional Government of Irel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apothecaries' Hall Of Ireland
The Apothecaries' Hall of Ireland is one of only two extant successors of a medieval Dublin guild. Medieval apothecaries in Dublin were first organized as members of 1446 Guild of Barbers, Apothecaries and Periwigmakers, with St Mary Magdelene as the patron saint. In 1747, Apothecaries formed their own guild, with St Luke as the patron. In 1791, the Company of Apothecaries’ Hall was formed for the purpose of building a Hall and regulating practitioners. Although the Company ceased licensing doctors in 1971, it continues to exist as a charitable organisation. The Company of Apothecaries’ Hall is now hosted by and shares premises with the Royal College of Physicians of Ireland on Kildare Street, Dublin. History Guild of St Mary Magdelene Medieval apothecaries in Dublin were members of Guild of Barbers, Surgeons, Apothecaries and Periwigmakers. The patron of the guild was St Mary Magdelene. The Barbers’ Guild was founded in 1446 by a charter of Henry VI (25 Henry VI) (the earlies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dublin Castle
Dublin Castle ( ga, Caisleán Bhaile Átha Cliath) is a former Motte-and-bailey castle and current Irish government complex and conference centre. It was chosen for its position at the highest point of central Dublin. Until 1922 it was the seat of the British government's administration in Ireland. Much of the current buildings date from the 18th century, though a castle has stood on the site since the days of King John, the first Lord of Ireland. The Castle served as the seat of English, then later British, government of Ireland under the Lordship of Ireland (1171–1541), the Kingdom of Ireland (1541–1800), and the United Kingdom of Great Britain and Ireland (1800–1922). After the signing of the Anglo-Irish Treaty in December 1921, the complex was ceremonially handed over to the newly formed Provisional Government led by Michael Collins. It now hosts the inauguration of each President of Ireland and various State receptions. The castle was built by the dark pool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guilds Of The City Of Dublin
The Guilds of the City of Dublin were associations of trade and craft practitioners, with regulatory, mutual benefit and shared religious purposes. In their eventual number they were sometimes called the "25 ''minor corporations''", in contrast to the city's principal authority, ''the'' Dublin Corporation). They operated in various forms from near the time of the Norman invasion of Ireland - the Merchants’ Guild existed in some form by 1192 - until the mid-19th century, and a few of which have descendent operations to the present day. The guild system in Ireland was first established under a royal charter from John, King of England, Prince John in 1192. It largely ceased between 1840 and 1845, but subsequently some guilds developed residual activities. The Guilds elected 96 of the up to 144 members of the Common Council, the lower house of the City Assembly, the governing body of Dublin Corporation, with 31 seats controlled by the Merchants Guild, and each of the others elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economy Of Dublin (city)
Dublin is the largest city and capital of Ireland, and is the country's economic hub. As well as being the location of the national parliament and most of the civil service, Dublin is also the focal point of media in the country. Much of Ireland's transportation network radiates from the city, and Dublin Port is responsible for a large proportion of Ireland's import and export trade. Dublin is home to a number of multinational corporations, including in "hi tech" sectors such as information technology, digital media, financial services and the pharmaceutical industry. Dublin is also the location of the headquarters of several large Irish public companies including Bank of Ireland, DCC plc, AIB Group, Ardagh Group, CRH plc, Ryanair, Smurfit Kappa and Flutter Entertainment (formerly Paddy Power Betfair). Many of Ireland's public sector and state owned employers are based in Dublin including utility companies such as ESB Group, educational institutions such as Trinity College Du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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