Mozambique: Airmail labels 3

Here are couple more labels from Mozambique arrived to my collection.

Year: 1936, Ungummed. Günter Mair's catalogue no: - MOZ-A-8, perforated 11, sheets of 20(2x10), 
ref.: "M/13", postage-due label for airmail, black/greenish blue, 5*****

Year: 1936, Gummed. Günter Mair's catalogue no: - MOZ-A-12a, perforated 11 ½ , sheets of 56(4x14), ref.: "M.° 13", frame size: 35.5x11mm, dark blue or blue/white, 2**

Blue/white