Germany: Airmail labels 3

Another lot of rare airmail labels from Germany.

Year: 1926, Gummed. Günter Mair's catalogue no: - GER-A-6, perforated 13 ¼ , sheets of 20(2x10),
issued at Stuttgart for Wurtemberg, black/orange, 5*****

Year: 1927, Gummed. Günter Mair's catalogue no: - GER-A-10a, imperforated, sheets of 24(3x8),
ref.: "406", issued at Karlsruhe for Baden, black/yellow-orange, 5*****

Year: 1931, Gummed. Günter Mair's catalogue no: - GER-A-16, imperforated, sheets of 112(8x14),
with 14 pairs tête-bêche, ref.: "1159 L 50.Postformblattlager in Schwedt", black/blue, 5*****