Netherlands: K.L.M airmail labels 4

Here are few more labels from Dutch airlines.

Year: 1936, Gummed. Günter Mair's catalogue no: - NEL-B-13, rouletted H, booklets with 10 strips 
of 4, issued for customers in Great Britain, ultramarine/white, 4****

Year: before 1961, Gummed. Günter Mair's catalogue no: - NEL-B-25, rouletted V, H rolls, lettering
modified, blue/red/white, 3***