Proof Block Larger Than four 1971 Commonwealth Heads of Government Meeting 15c. and 30c. imperforate plate proof blocks of twenty-five se-tenant with El Salvador 1971 Churches 15c. and 20c. imperforate plate proof blocks of twenty-five, all printed on one large piece of gummed paper marked "PROOF" and with each stamp overprinted "SPECIMEN" diagonally, and the same four values in imperforate plate proof blocks of nine affixed to piece of card twice marked "PROOF" and with each stamp overprinted "SPECIMEN" horizontally. A remarkable group
Proof Block Larger Than four 1971 Commonwealth Heads of Government Meeting 15c. and 30c. imperforate plate proof blocks of twenty-five se-tenant with El Salvador 1971 Churches 15c. and 20c. imperforate plate proof blocks of twenty-five, all printed on one large piece of gummed paper marked "PROOF" and with each stamp overprinted "SPECIMEN" diagonally, and the same four values in imperforate plate proof blocks of nine affixed to piece of card twice marked "PROOF" and with each stamp overprinted "SPECIMEN" horizontally. A remarkable group
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
