Bidspirit auction | Angola - 1915/19, Ceres overprinted

Angola - 1915/19, Ceres overprinted envelope circulated from Lobito to Philadelphia, USA, with a pair of 5 ctv dark blue MF#148, dotted paper perforated 15x14 and with the remaining 50 ctv of the postage composed of D. Carlos Mouchon 500 Reis black with overprint Republic MF#101. Correct postage of 60 c.