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Source:
Colnect
Issued by:
Singapore
Function:
postage
Date:
4/11
/
1981
Issue:
Technical Training
Denom:
50c
Color:
multicolored
Design:
electronics
Watermark:
unwmk
Perf:
13.25
Catalog value:
Prev:
35c d=Building construction
Next:
75c d=Precision machinery
External links:
Colnect 483851..nical_training
