| Heading and notes: | Form Number T.G. 42G  (form). Heading changed to CONGRATULATIONS. | 
| Message area: | Blank. | 
| Reverse side: | Blank. | 
| Colours (text & form): | Pink, orange and blue on cream. | 
| Size of form overall: | 151 × 203 mm. | 
In 1939, the Congratulations, Mothers' Day and Birthday Greetings forms and matching envelopes were all redesigned.
      This form was probably issued in August 1939 although dates in 1939 are very scarce. 
|  | AB-GCF-39A. Adelaide GPO to South Plympton Characteristics: 
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|  | AB-GCF-39B. Probably a later printing. Abbotsford to Richmond Characteristics: 
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|  | Used with scarce TELEGRAPH rubber date stamp of Williamstown 20 June 1942. Characteristics: 
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|  | AB-GCE-39Aa. Unused opaque delivery envelope. Characteristics: 
 
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|  | AB-GCE-39Ab. Used opaque delivery envelope. Characteristics: 
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|  | AB-GCE-39B. Window delivery envelope from a Specimen set (shown by the 358 handstamp). Characteristics: 
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|  | AB-GCE-39C. Broken Hill to Goodwood, SA. (21 December 1940 - from the accompanying telegram). Characteristics: 
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Details of use and rarity.
| Form sub-number | Schedule number | Earliest recorded date | Rarity rating | 
| GCF-39A. | None. | 10 August 1939 at Plympton, S.A. | NC used | 
| GCF-39B. | None. | 20 January 1940 at Hawthorn, Vic. | NC used | 
| GCF-39C. | None. | 23 April 1942 at Caulfield East, Vic. | RRR | 
| Envelopes | |||
| GCE-39Aa. | None. | NC | |
| GCE-39Ab | None. | 20 June 1942 at Williamstown, Vic. | RR | 
| GCE-39B | None. | NC | |
| GCE-39C | None. | 21 December 1940 at Goodwood (probably). | NC |