Sg 456a 2½d Prussian Blue. A superb used example with crisp cds accompanied by Sg 456a 2½d Prussian Blue. A superb used example with crisp cds accompanied by. A Continued »
SG. 373 variety N21 (15). 2½d Indigo Blue (toned paper). A UNMOUNTED MINT 373 variety N21 (15). 2½d Indigo Blue (toned paper). A superb UNMOUNTED MINT control Continued »
