Ireland: Airmail labels 4

Here is more nice and rare airmail labels from Ireland! Should say that first Irish labels look very nice!

Year: 9.1922, Gummed. Günter Mair's catalogue no: - IRL-A-1, imperforated, sheets of 84(6x14), 
ref.: "P25", black/blue, 5*****

Year: 1926, Gummed. Günter Mair's catalogue no: - IRL-A-3, perforated 11 sheets of 84(6x14), 
ref.: "P.25.", black/blue, 5*****

Year: 1.1936, Gummed. Günter Mair's catalogue no: - IRL-A-5a, perforated 11 sheets of 84(6x14), 
"PAR AVION": 23mm, "AER-PHOST": 22.5mm, ref.: "O.E.78.", black/bright blue, 4****

Year: before 1940, Gummed. Günter Mair's catalogue no: - IRL-A-5b, rouletted, sheets of 84(6x14), 
"PAR AVION": 23mm, "AER-PHOST": 22.5mm, ref.: "O.E.78.", black/bright blue, 4****

Year: approx.1941, Gummed. Günter Mair's catalogue no: - IRL-A-21, rouletted, sheets, ref.: "O.E.78.", "PAR AVION": 22mm, "AER-PHOST": 20.5mm, black/bright blue, 4****