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Source:
Colnect
Issued by:
Bulgaria
Function:
postage
Date:
4/7
/
1976
Issue:
5-year plan 1976
Denom:
13s
Color:
dark violet
Design:
Chemical Plant Devnya
Watermark:
unwmk
Perf:
13x13.25
Catalog value:
Prev:
10s blkgrn d=Chemical Combine Sviloza
Next:
20s blgrn d=Hydropower plant Sestrimo
External links:
Colnect 223988..ern_industrial
Record of changes
