ARGENTINA 1891 MUESTRA (SPECIMEN) OVERPRINTS 20p green Admiral Brown, BLOCK OF 4 overprinted “MUESTRA” in black, as Scott 88, couple of light tone spots on perfs, fine mint, a few lightly tone perfs.  Cat $2000 (£1,500) as normal stamps.

Send Enquiry for ARGENTINA 1891 MUESTRA (SPECIMEN) OVERPRINTS 20p green Admiral Brown, BLOCK OF 4 overprinted “MUESTRA” in black, as Scott 88, couple of light tone spots on perfs, fine mint, a few lightly tone perfs.  Cat $2000 (£1,500) as normal stamps.