Czechoslovakia, German Occupation: Airmail labels

Here are airmail labels used in Czechoslovakia under German occupation.

Year: 4.1940, Gummed. Günter Mair's catalogue no: - CSR-A-10a, perforated 10 or 10 ¾ ,
sheets of 50(5x10), futher dates: 1.1941, 2.1944, issued for Bohemia/Moravia, black/grey-blue or light grey-blue, 4****

perforated 10

Year: 4.1940, Ungummed. Günter Mair's catalogue no: - CSR-A-11, imperforated, sheets of 
48(6x8), intended for use on parcels, issued for Bohemia/Moravia, black/grey-blue, 5*****