Here are the first airmail labels from Italy. First label have 2 varieties. Perforated and unperforated. Another label is unlisted variety in catalog. Misplacement of perforations has resulted in the elimination of the "Mod. 24 R." inscription in the upper right margin.
Year: 1929, ungummed. Günter Mair's catalogue no: - ITA-A-1, perforated 11 ½ , sheets of 40(4x10),
ref.: "Mod. 24R.", some sheets come imperforated, black/light blue-grey, 4****
Year: 1930, Ungummed. Günter Mair's catalogue no: - ITA-A-2, perforated 11 ½ , ref.: "Mod. 24 R.",
some sheets come imperforated, Black/Light grey, 2**
Unlisted variety, misplacement of perforations.