Bidspirit auction | Postal stationery 1955/57 – Universal

Postal stationery 1955/57 – Universal Letter. Caravel type stamp, with a ”TWENTY CENTS” vignette from the ”SOCIAL WORKS” of the CTT (Portuguese Post Office), Figueira da Foz advertisement. OM4, 1$00, violet-red. Series A2 (5,000 copies). Mint, unrepaired, with slight stains.