SG379 1913 4d. Grey-green. SPECIMEN type 26, C 13 control strip of 3. Unmounted, original gum.

Name: SG379 1913 4d. Grey-green. SPECIMEN type 26, C 13 control strip of 3. Unmounted, original gum.
SKU: 339548
Availability: InStock

£895.00

A Harrison colour standard. Rare control piece.