In 2017 the Australian post office issued an unusual set of stamps featuring caving, representing Cliefden Caves in New South Wales, Weebubbie Cave in Western Australia (both $1), Undara Lava Cave in Queensland ($2), and Kubla Khan in Tasmania ($3).
For collectors we have a limited number of sets of stamps for sale, comprising the original pack with four stamps (the card back details the caves and something of their history) plus the special issue Caves envelope (also with printed information on the reverse).
The set is available for purchase in the UK only; the price includes postage. Note that buying from Australia for delivery in the UK may attract additional charges (VAT and post office surcharge), whereas these stamps are already in the UK ready for despatch.
Size: Envelope: 190mm x 110mm; card pack (folded): 165mm x 105mm
Publication date: 2 May 2017 (withdrawn from circulation end of month)