![ECUADOR - 1911 - SPECIMENS: 1c black & vermilion a fine corner marginal block of eight each stamp with 'SPECIMEN' overprint in red and small hole punch. Ex ABNCo. Archive. (SG 354) (ECU/38636)](http://latinamericanphilatelics.com/cdn/shop/products/ECU38636_a5a30fa4-f9dc-4573-bbcd-410029354b2f_{width}x.jpg?v=1650746703)
1c black & vermilion a fine corner marginal block of eight each stamp with 'SPECIMEN' overprint in red and small hole punch. Ex ABNCo. Archive. (SG 354)
1c black & vermilion a fine corner marginal block of eight each stamp with 'SPECIMEN' overprint in red and small hole punch. Ex ABNCo. Archive. (SG 354)