Australia - International - AWA.
Beam Wireless window delivery envelope: IAA-EB-1.
 
General characteristics:

Heading and notes: Form No. T.O. 3.
AMALGAMATED WIRELESS above
BEAM WIRELESS SERVICE.
Message area: Window with a thick blue border.
Reverse side: Blank.
Colours (text & form): Red on white paper.
Size of form overall: 89 × 147 mm.
Distinctive characteristics of this form:

 Hancock claims this envelope was produced for use with ornamental delivery forms. There is no evidence for this claim and the size, design and thickness of those forms would seem to negate the claim.

IAA-EB-1
Printed in November 1929.
IAA-EB-1A.

Window delivery envelope used at Melbourne on 5 June 1936.

Characteristics:

  • BEAM ... is in thin letters;
  • no space between the two lines under the window in the centre;

 

IAA-EB-1 rev IAA-EB-1A (Security).

The security pattern used for the above window delivery envelope printed in 1929.

IAA-EB-1B
Printed in May 1938.
IAA-EB-1B.

Unused window delivery envelope.

Characteristics:

  • BEAM ... is in thick letters;
  • a space between the two lines under the window in the centre;

 

IAA-EB-1B rev IAA-EB-1B (reverse).

The reverse side of the above delivery envelope.

IAA-EB-1B security IAA-EB-1B (reverse).

The reverse side of the above delivery envelope with the flap opened showing:

  • the security pattern of spider-webs in green; and
  • the rounded flap with slightly curved sides.

 

Details of use and rarity.

Form
sub-number
Schedule number Earliest recorded date Rarity rating
EB-1A T.O. 96 100M - 11/29 5 June 1936 at Melbourne. RRR
EB-1B T.O. 96 50M 5/38   RRR