standard weight coin
21Florin (Italian coin) — The Italian florin was struck from 1252 to 1523 with no significant change in its design or metal content standard. It had 54 grains of gold (3.5g). The fiorino d oro of the Republic of Florence was the first European gold coin struck in… …
22Dime (United States coin) — Dime United States Value 0.10 U.S. dollar Mass  2.268 g  (0.0729 troy oz) Diameter  17.91 mm  (0.705 in) Thickness   …
23New Zealand 20 cent coin — Twenty cents New Zealand Value 0.20 New Zealand dollars Mass  4.00 g Diameter  21.75 mm Thickness  1.56 mm …
24Uncia (coin) — Issued in Rome between 275–270BCE The uncia (Latin, twelfth part ) was a Roman unit of length (equivalent to an inch, one twelfth of a pes or foot) and of weight (equivalent to an ounce, one twelfth of a libra or pound). Contents …
25Noble (English coin) — Edward III: AV noble. 1354 1355. Pre treaty period, series E, London mint The Noble was the first English gold coin produced in quantity, having been preceded by the Gold penny and the Florin earlier in the reigns of King Henry III and King… …
26Five pounds (British decimal coin) — Infobox Coin Denomination = Five pounds Country = United Kingdom Value = 5.00 Unit = pounds sterling Mass = 28.28 Diameter = 38.61 Thickness = 2.5 Edge = milled, with an inscription Composition = 75% Cu, 25%Ni Years of Minting = 1990 ndash;… …
27British twenty-five pence coin — Infobox Coin Denomination = Twenty five pence Country = United Kingdom Value = 25.0 Unit = pence sterling Mass = 28.28 Diameter = 38.61 Thickness = 2.5 Edge = milled Composition = 75% Cu, 25%Ni Years of Minting = 1971 ndash;1981 Catalog Number =… …
28Penny (Canadian coin) — Infobox Coin Country = Canada Denomination = Penny Value = 0.01 Unit = CAD Mass = 2.35 Diameter = 19.05 Thickness = 1.45 Edge = smooth Composition = 94% steel, 1.5% Ni, 4.5% Cu plating Years of Minting = 1858–present Catalog Number = CC 20… …
29Obol (coin) — For the brachiopod genus, see Obolus (brachiopod). Not to be confused with Obelus. Above: Six rod shaped obeloi (oboloi) displayed at the Numismatic Museum of Athens, discovered at Heraion of Argos. Below: grasp of six oboloi forming one drachma …
30New Zealand one dollar coin — One dollar New Zealand Value 1.00 New Zealand dollars Mass  8.00 g Diameter  23.00 mm Thickness  2.74 mm …
