Soviet Union: Airmail labels 2

Just added some more of Soviet Union airmail labels to my collection. Some older labels and the others newer.

Year: 1926, Ungummed. Günter Mair's catalogue no: - SOV-A-4, perforated 11 ½ (red crossses in corners), sheets, red/cream, 4****

Year: 1932, Ungummed. Günter Mair's catalogue no: - SOV-A-23, rouletted, sheets, brown-orange/light cream, 5*****

Year: 1933, Ungummed. Günter Mair's catalogue no: - SOV-A-34, imperforated (red lines), sheets, red/cream, 4****

Year: 1937, Gummed. Günter Mair's catalogue no: - SOV-A-41, rouletted, sheets, "PAR AVION": 27mm, dark blue or black-blue/light cream, 4****

dark blue

Year: 1948, Gummed. Günter Mair's catalogue no: - SOV-A-43, perforated 14, sheets, "PAR AVION": 27mm, blue-grey/white, 2**

Year: 1948, Gummed. Günter Mair's catalogue no: - SOV-A-44, perforated 11, sheets, "PAR AVION": 28mm, ref.: "M 116", dark blue or grey-blue or light grey-blue/white, 2**

Year: approx.1960, Gummed. Günter Mair's catalogue no: - SOV-A-48a, perforated 10, sheets, "PAR AVION": 27mm, grey-blue or greenish blue or light blue/white, 1*

greenish blue

Year: before 1957, Gummed. Günter Mair's catalogue no: - SOV-A-49a, perforated H 9, V 11, sheets, "PAR AVION": 27.5mm, grey or dark blue-grey, 1*

dark blue-grey

grey?

Year: before 1957, Gummed. Günter Mair's catalogue no: - SOV-A-49b, perforated 11, sheets, "PAR AVION": 27.5mm, blue/white, 1*

Year: approx.1960, Ungummed. Günter Mair's catalogue no: - SOV-A-55, perforated 8 ½ , sheets, height of text: 8mm, lettering modified ("B"), intended for domestic airmail, red/light greenish grey, 3***