Bidspirit auction | Angola 1920-22 D. Carlos Mouchon

Angola 1920-22 D. Carlos Mouchon with local overprint REPUBLICA - Clandestines. Stamp of 25 reis carmine, D. Carlos Mouchon, with the local overprint REPUBLICA INVERTED, and with a dated circular stamp, struck in black on the overprint. A very curious stamp, not catalogued or mentioned in the Mundifil 2019 catalogue, and it may be a fake (?). Interesting.