Australia: W.A.A. airmail labels

An airline issue labels from W.A.A. (West Australian Airways Ltd.)

Year: 5.1929, Gummed. Günter Mair's catalogue no: - AUS-B-28, rouletted H, vertical strips of 7, 
issued at the occasion of first flight Adelaide - Perth, 2.6.1929, orange-red/dark blue/white, 5*****

Year: 6.1929, Gummed. Günter Mair's catalogue no: - AUS-B-29, rouletted H, vertical strips of 7,

printed by McKenzie Printing, Perth, orange-red/dark blue/white, 4****