Lot 6
LIECHTENSTEIN 1928, incoming line to the flight St. Gallen - Zurich - Berlin, registered letter from Triesenberg 21.6.28 with colourful Michel F and reverse Switzerland 20 Rp airmail in two countries Michel F with arrival Berlin 23.6.28 and on face red "m Lb", further to Brunswick with arrival 24.6.28 reverse, superb
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