The Athenian Tetradrachm

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The Owl of Athens – Possibly the Most Famous Trade Coin of the Ancient Greeks The silver Athenian Tetradrachm (4 Drachms) widely circulated around the Mediterranean City States and beyond, from the early 5th century BC.   It retained its “Archaic” design for … Continued

A One Penny Coin of New Guinea

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Territory of New Guinea, 1 penny, 1936, KM6 With an area of 815 000 km2, the island of New Guinea is the second largest island in the world and is located immediately north of the northern tip of eastern Australia.  The western … Continued

Double Portrait Note from Brazil

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This note for 1000 cruzeiros was the first in a new series of notes issued by Banco Central do Brasil (Central Bank of Brazil) between 1978 and 1985.  If this note is rotated through 180º, it still appears to be up … Continued