Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

Worldwide Air Post Stamps and Postal History - Denmark

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Start price: $150

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1930 (July 17), Robert Svendsen Air Post Label 5kr black and blue used on stationery postcard 10o green, uprated by Airplane and Plowman 15o violet, sent from Copenhagen to Malmö, all appropriate markings, in addition sheet of four numbered ”1089” at top and a single vignette, all with full OG, NH, VF, Est. $250-$300, Sc. #C2