India: Old airmail labels 2

Here is another great lot of Indian airmail labels.

Year: 1952, Gummed. Günter Mair's catalogue no: - IND-A-9a, perforated H 13 ¾ , V 14, sheets,

dark blue or grey-blue/white, 1*

Year: 1962, Gummed. Günter Mair's catalogue no: - IND-A-9b, rouletted, sheets, some sheets come with
separation shifted, dark blue or grey-blue/white, 1*

Year: approx.1970, Gummed. Günter Mair's catalogue no: - IND-A-9c, perforated H 13 ¾ , V 14, sheets 
of 70(7x10), dark violet-blue or violet-blue or dark ultramarine/white, 1*