75 blue envelopes addressed to Messrs Wilkinson & Lavender Ltd, Box 848J GPO Melbourne Victoria 3001. Sent from Hay NSW (The Riverina Office of Wilkinson & Lavender). Letters are enclosed within two pieces of brown cardboard, secured with an elastic band. Written on outside of cardboard ' Air Mail Flown Covers. R.K. Munro, 63 Pyke Street, Bendigo, Vic. Aus' 'By Air Mail' sticker affixed alongside name and address. Various postage stamp denominations on envelopes; 1p, 11/2p, 3p, (King George V), 3p (air mail service), 11/2p (1929 Centenary of Western Australia), and A.A.S. Ltd stamp*. No contents in envelopes. Cancellation marks on stamps. Items collected by R. K. Munro, 63 Pyke Bendigo Victoria 3550. Wilkinson & Lavender were Stock & Station Agents and Airline agents for A.A.S Ltd. R. K. Munro was employed by Wilkinson Lavender in 1929/30? *Australian Aerial Services Ltd - featuring a winged messenger.Wilkinson & Lavender Stock & Station Agents, Airline Agents for Australian.Aerial.Services Ltdaviation, civilian, air mail envelopes within aust., basil watson collection.