Penny Black Philately
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1920
1920 Airmail - No.100 Overprinted WM: 2
AL1-s.jpg 30(C)
brownish orange/carmine
1920 PRO JUVENTUTE - Coat of Arms WM: 2
AS-s.jpg 7½+5 (C)
multicoloured
AT-s.jpg 10+5 (C)
multicoloured
AU-s.jpg 15+5 (C)
multicoloured