Stamps of Qatar: Coins Issue (1966)
This issue featured gold and silver coinage. Circular designs, embossed on gold or silver foil, backed with "Walsall security Paper",
Stamps of Estonia: Euro Coin (2014)
On January 1, 2002 the common euro currency was launched in twelve countries of the European Union. On January 1,
Stamps of Tonga: Id. Gold Coins Issue (1963)
Tonga introduced a series of three gold coins in 1963 and issued a set of thirteen stamps to mark the