Portugal: 1892/1918, part of exhibit comprising two mint stamps (Michel 1+2), an
Portugal
1892/1918, part of exhibit comprising two mint stamps (Michel 1+2), and five entires: 1892 lettersheet with imprinted "MEMORANDUM" inside, bearing adhesive no. 1 used 9 MAR 92; four stationery cards used 1916/1918 by German POWs from Angra/Terceira to Germany, showing various related cachet marks on...