Tonga 1982 Christmas overprint proofs on card in horiz pairs, a) in carmine (as used for SG 831) and b) in silver (as used on SG 832-3)
Tonga 1982 Christmas overprint proofs on card in horiz pairs, a) in carmine (as used for SG 831) and b) in silver (as used on SG 832-3)