Netherlands: K.L.M airmail labels 6

Here is another great lot of airmail labels issued by K.L.M

Year: 1936, Gummed. Günter Mair's catalogue no: - NEL-B-11, rouletted H, perforated V 11, sheets,
issued for customers in Strait Settlements, blue or dark blue/white, 4****

dark blue

Year: 12.1937, Gummed. Günter Mair's catalogue no: - NEL-B-14, rouletted H, booklets with 10 strips of 4, issued for customers in Great Britain, dark blue/white, 4****

Year: 1949, Gummed. Günter Mair's catalogue no: - NEL-B-16, rouletted H, strips, issued for customers in Uruguay, dark blue/white, 3***

Year: before 1960, Gummed. Günter Mair's catalogue no: - NEL-B-19b, rouletted H, booklets with 10 vertical strips of 4, parallelogram shape, blue/red/white, 3***

Year: before 1961, Gummed. Günter Mair's catalogue no: - NEL-B-24, perforated V 10 ¾ , H rolls,
blue/red/white, 3***

Year: before 1961, Gummed. Günter Mair's catalogue no: - NEL-B-26, perforated V 10 ¾ , H rolls,
blue/red/white, 3***