Turkey: 1964 (1 June). Istanbul Sultan Ahmed Mosque 50k vertical pair unmounted mint with double print and blob over 5 error. Isfila 2297
£35
Out of stock
Isfila 1449/1454. From Mauritania UPU Archive
Isfila 1420/1423. From Mauritania UPU Archive
Isfila 1746/1757
SG 2252, Isfila 2500