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Source:
Colnect
Issued by:
Singapore
Function:
postage
Date:
8/1
/
1986
Issue:
25th Anniversary of Industrial Progress
Denom:
50c
Color:
multicolored
Design:
electronics
Watermark:
unwmk
Perf:
15x14.5
Catalog value:
Prev:
35c d=Precision engineering
Next:
75c d=Biotechnology
External links:
Colnect 468462..elopment_Board
