Official (OS) Stamps of Australia
All our Australian OS stamps are individually listed and illustrated with details on gum or postmark, centering and general condition
Australian Official Service (OS) first watermark large OS and second watermark small OS Kangaroos
Australian Official Service (OS) third watermark small OS and small multiple watermark small OS Kangaroos
Australian Official Service (OS) single crown and large multiple watermarks KGV Heads
Australian Official Service (OS) large multiple watermark, no watermark, single watermark and small multiple watermark KGV Heads
Australian Official Service (OS) commemorative stamps
Australian Official Service (OS) Kangaroos, KGV Heads and commemorative OS overprints
1928 Exhibition Miniature Sheets
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