SG 139 1931-38 6d Airmail overprinted OS AG6 187

1914 Single Crown__
1916-18 Rough Paper__
1918-24 Large Multi__
1918-23 Single Crown__
1924 No Wmk__
1924 Single Crown__
1926-30 perf 14__
1926-30 perf 13½x12½__
1930 Surcharges__
1931-36 C of A__

KGV Commemoratives__

KGVI Stamps__

KGVI Definitives__
KGVI Commemoratives__

QEII Pre-Decimals__

Decimal Stamps__

Stamps 1966-1969__
Stamps 1970-1979__
Stamps 1980-1984__
Stamps 1985-1989__
Stamps 1990-1993__
Stamps 1994-1995__
Stamps 1996-1997__
Stamps 1998-1999__
Stamps 2000-2001__
Stamps 2002-2003__
Stamps 2004-2005__
Stamps 2006__
Stamps 2007__
Stamps 2008__
Stamps 2009__
Stamps 2010__

Postage Dues__

1902-09 Early__
1909-30 Crown over A__
1931-38 C of A Wmk__
1946-57 Redrawn Values__
1953-59 High Values__
1958-60 No Wmk__

Official (OS) Stamps__

Roos 1913-15 Perfins__
Roos 1915-33 Perfins__
Heads 1914-23 Perfins__
Heads 1924-30 Perfins__
Commemorative Perfins__
OS Overprints__

General Booklets__

Booklets 1927-1948__
Booklets 1949-1989__
Booklets 1990-1999__
Booklets 2000-2004__
Booklets 2005-__
Prestige Booklets__

First Day Covers__

Wesley__
Royal__
Other Illustrated__
Other Cover Producers__
Generic & Home Made__
Officials__

Postal Stationery__

Aerogrammes__
Letter Cards__
Letter Sheets__
Military Envelopes__
Newspaper Wrappers__
Postal Cards__
Prepaid Envelopes__
Registration Envelopes__
States Stationery__

Stamp Reprints__

Living Together__
Sports__
Thinking of You__
Threatened Species__
Wetlands and Waterways__
Australian Wildlife__
Koalas and Kangaroos__
Nature of Australia__
International Views__
Wildflowers__
Other Domestic__
Other International__

Labels, Packs and Cards__

Australia Specialist

Kangaroo & Map Series__

1st Watermark__
2nd Watermark__
3rd Watermark__
Sm Mult Watermark__
C of A Watermark__

KGV Heads__

Single Wmk__
Large Multiple Wmk__
No Wmk__
Small Multiple Wmk__
C of A Wmk__

KGV Commemoratives__

Parliament House__
1928 Stamp Exhibition__
1929 Air Mail Service__
Western Australia__
Sturt's Exploration__
Kingford Smith__
1931 Air Mail Service__
Sydney Harbour Bridge__
Victoria__
John Macarthur__
Gallipoli Landing__
KGV's Silver Jubilee__
Tasmanian Cable__
South Australia__

KGVI Definitives__

1937-49 perf 13½x14__
1937-49 perf 15x14__
1941 Surcharges__
1942-50 Definitives__
1948-56 Definitives__
1948-56 No Watermark__
1951-52 Definitives__
1952-65 Definitives__
1950-52 Definitives__
1950 Definitives__

KGVI Commemoratives__
QEII Pre-Decimals__

Decimal Stamps__

Varieties and Blocks__
Roll Joins & Tab Pairs__
Gutter Strips & Blocks__
Gutter Pairs__
Souvenir Sheetlets (SES)__

Specialist Booklets__

Booklet Varieties__
Military Post Booklets__
Advertising Booklets__

Postage Dues__
Official (OS) Stamps__
Stamp Publicity Cards__

Aerophilately__

First Flight Covers__
Balloon, Pigeon, Rocket__

Australian Territories

New Zealand General

KGVI Stamps__
QEII Pre-Decimals__

Decimal Stamps__

Stamps 1967-1969__
Stamps 1970-1979__
Stamps 1980-1989__
Stamps 1990-1993__
Stamps 1994-1996__
Stamps 1997-1999__
Stamps 2000-2002__
Stamps 2003-2004__

Booklets__
Life Insurance Stamps__

First Day Covers__

FDCs 1935-1975__
FDCs 1976-1992__
FDCs 1993-2003__

New Zealand Specialised

QEII Pre-Decimals__

Decimal Stamps__

Specials 1967-1979__
Specials 1980-1989__
Specials 1990-2000__

Counter Coil Pairs__

KGVI Issues__
Decimal Issues__
QEII Head issues__
QEII Pictorial Issues__

Stamp Rewards__

New Zealand Territories

Ross Dependency__

Stamps__
First Day Covers__
Specialist Stamps__

Tokelau Islands__

Stamps__
First Day Covers__
Specialist Stamps__

Stamp Catalogues

Specialist Catalogues__

Articles & Information

Booklet Advertisements__
Australian Aerophilately__
Stamp Booklets__
Birds on Stamps__
Stamp Reprints__
Stamp Gutters__

SG 139 1931-38 6d Airmail overprinted OS (AG6/187)