Hong Kong 1965 International Co-operation Year 10c corner block of 12 with inverted wmk, superb unmounted mint, SG 216w
Hong Kong 1965 International Co-operation Year 10c corner block of 12 with inverted wmk, superb unmounted mint, SG 216w
Hong Kong 1965 International Co-operation Year 10c corner block of 12 with inverted wmk, superb unmounted mint, SG 216w