Lot 30652 – 1927 Aerial Post Issue, collection in 3 albums wit

1927 Aerial Post Issue, collection in 3 albums with all values existing on cover up to 5Kr, the collection includes not only special and 1st flight covers but also shows several covers of purely commercial usage like bank covers & company correspondence, incl. also 5 covers with 5Kr value, foreign destinations to USA, German Reich, Turkey, Netherlands, India, Iraq, Belgium, Great Britain, Syria (with Brit. Gaza transit), France, Soviet Union and Austria, many are additionally registered, one with ‘Avis de Reception’, by quantity, frankings & flights a collection difficult to repeat and obviously one of the largest in existence of this issue