1914 Aerial rally to Monaco, 4 fresh postcards franked with the Aéro club Monaco label, cancelled by the Rally Aérien mark from Paris, Madrid, London and Milano respectivly, all fine to very fine 

Polarfahrt 1 mark red on cover from Berlin 20-7-1931 via Amsterdam and Batavia to Djokjakarta (Dutch East Indies) fine/very fine (cover some minor folding and some thinning on reverse) Rare destination!

HINDENBURG 1937 crash cover, partially charred letter sent from Schiedam (the Netherlands) by Mrs H. Mak-v.d. Wetering on 1-5-1937 to Mr P. Mak in Hillside Avenue Nutley (NJ). The ill-fated zeppelin crashed while attempting to land and was subsequently engulfed in flames at Lakehurst NJ on the 6th of May 1937. This envelope has been saved and carefully sealed by the Post Office Department (officially sealed Post Office Department UNITED STATES OF AMERICA). The cover has been franked with a 12½c Jamboree and a pair of  30c Wilhelmina Veth type stamps, all tied by a «short-beam» cds Schiedam postmark (1.V.1937). Rate for a letter to the USA up to 20 grams was 12½ cent, the additional zeppelin fee was 60c per 5 gram, so this is the correct 72½ cent rate for a letter up to 5 grams. The piece has been certificated by Vleeming AIEP in 2019: From the Netherlands 29 saved pieces of mail are known to me (20 addressed to Mr Thoolen and 9 private). Partly burned letter and franking genuine, transported by the Hindenburg. Date and franking clearly visible., cat.v. EUR17.500       

first official UK aerial post 1911,  collection 10 ex. (postcards and envelopes) in mixed quality including some interesting destinations (Siloah Jamaica, Holland, Germany etc.) on album leaves