1956 Aug 13th. Registered Air Mail. Junction Shaft to Cyrenaica, Libya. This is quite an extraordinary cover. The Junction Shaft (Snowy Mountains Scheme) post mark is extremely rare - and this cover is also Registered....and it is to Libya!!!
I charge a flat fee for postage/packaging/handling of $2.50 within Australia and $4.80 Internationally.
Will combine postage.