Australia - Brown years: 1923-1939.
1938 Australia's 150th Anniversary: AB-GS-38.

  
General characteristics:

Heading and notes: Form number T.G. 42M for the form but none for the opaque delivery envelope.
Message area: Blank.
Reverse side: Blank.
Colours (text & form): Multicoloured on cream.
Size of form overall: 152 × 203 mm.
Distinctive characteristics of this form:

 This form was probably issued on 31 January 1938. An announcement in the Advertiser of 2 February noted:

"A sesquicentenary celebrations souvenir telegram form and envelope have been issued by the Postal Department. The form will be available until April 25. It is printed in ornamental colors. On one side is depicted the sailing ship H.M.S. Sirius. which carried Australia's earliest pioneers, and on the other side a modem "floating palace" at anchor in Sydney Cove".

GSF 38 AB-GSF-38.

Unused delivery form.
GSE-38 AB-GSE-38.

Unused opaque delivery envelope.
GSE-38 Crows Nest AB-GSE-38.

Used for local delivery at Crows Nest.
4 April 1938.

Has two 150th Anniversary poster stamps plus a 4d green Koala.

An unused form with a TELEGRAPHS TAMWORTH date stamp of 24 March 1938 is known (see Prestige Philately Sale 183 Lot 35).

Details of use and rarity.

Form
sub-number		 Schedule number Earliest recorded date Rarity rating
GSF-38 None.  

C if unused.
RR if either form or envelope used.
RRRR as a used and tied pair.
GSE-38 None. 4 April 1938 at Crows Nest, NSW.