Thailand: Airmail labels 2

Here is very old and rare airmail labels from Siam(Thailand). It's a non postal issue label.

Year: 1925, Gummed. Günter Mair's catalogue no: - THL-C-1, imperforated, black/grey-green, 5*****

Thailand (Siam): Old airmail labels

Here is an old label from Siam (nowdays Thailand).

Thailand (formerly Siam) is a country that lies in the heart of Southeast Asia. The country's official name was Siam until June 23, 1939, when it was changed to Thailand. It was then renamed Siam from 1945 to May 11, 1949, after which it was again renamed Thailand. (Wikipedia).

Year: 1931, Ungummed. Günter Mair's catalogue no: - THL-A-2, perforated 11 ½ , sheets of 50(5x10)
grey-blue/white, 4****