£420
1928-32 PROVISIONAL AIR MAIL OVERPRINTS: Collection of stamps & covers, superbly presented and typed up on display pages. Extensive study of opts. on the 1928-1932 issues with varieties inc. black & blue opts. on 10p value (SG 197/198) and complete set to 10p perforated "SPECIMEN"; various 'errors' on high value multiples inc. "AEREU" instead of "AEREO" (posn. 32 in sheet), also 'full stop' after "AEREO". Also inc. the scarce 3p on 5c slate-blue mint (SG 201) and two forged examples on covers (very scarce thus). Both wmkd. and unwmkd. sets of 1928 are represented. A range of covers illustrates usage of the provisional opts. inc. 4 Jun. 1930 first direct crossing of Atlantic Natal to Dakar and 8 Oct. Graf Zeppelin cover from Concepcion to Germany. Very fine throughout. (c.95 stamps & 16 covers) Cross Reference: AIR MAIL COVERS
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