Sri Lanka (Ceylon): Airmail labels 3

Here are the first airmail labels from Ceylon or Sri Lanka.

Year: 9.1928, Gummed. Günter Mair's catalogue no: - SLK-A-1a, perforated 13 or V 12 ¾ H ½ , 
sheets of 50(5x10), yellow-cream gum, black/bright dark blue or bright black-blue, 4****

Bright dark blue

Bright black-blue

Year: 1934, Ungummed. Günter Mair's catalogue no: - SLK-A-3a, rouletted H, VL, booklets with
4 sheets of 4(1x4) + stamps, light grey-blue/white, 4****