Bidspirit auction | Portugal * 1893 – D.

Portugal * 1893 – D. Carlos I, Diogo Neto type. OM4a, 50 réis, light grey-blue. Envelope circulated from Lisbon (March 25, 1996) to London (March 26, 1996), with transit through Manchester (March 26, 1996), with vignette on the back.