Portugal, Bronze coin of 10 centavos 1930 of Portuguese Republic, World Coins Portugal KM#573. The year 1930 is the rarest coin in the series that belongs to the first series of 10-cent bronze coins created by decree 9718 of May 23, 1924. Issuance ceased under the terms of Decree-Law 32648 of January 29, 1943. Withdrawal circulation on July 1, 1949 (Decree-Law nº 37120, of October 27, 1948). Issued on the various dates minted between 1924 and 1940: 47044150.

Ancient greeK coin, Olbia, Sarmatia. Bronze Dolphin Proto-Money, circa 550 a 350 BC., Æ 35mm, (Sear 1684)

Sierra Leone, 1 Dollar 2006 Copper-nickel Brontosaurus, Series to dinosaurs, World Coins Sierra Leone KM#324, PROOF finish (matte high relief and mirrored field)