Germany: Allied Occupation - American Zone airmail labels

Here are the labels from Occupied Germany - American Zone.

Year: 10.1948, Gummed. Günter Mair's catalogue no: - AOG-A-2, peforated 11 ¼, sheets of 
56(4x14), issued for Hesse and Wurtemberg, greenish-blue or blue/white, 4****

Year: 5.1949, Gummed.  Günter Mair's catalogue no: - AOG-A-4, peforated 10 or 11 ¼, sheets of 
28(4x7), bright blue/white, 3***

11 ¼