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Source: Wikimedia Commons
Issued by:
Berlin
Function:
postage
Date:
7/12
/
1979
Issue:
1975
Denom:
150pf
Color:
brown
Design type:
technology (1975)
Design:
excavator
Watermark:
unwmk
Perf:
14
Catalog value:
In collections:
used
(Stan Shebs)
Prev:
11/14/1975 140pf red d=Heat & power plant
Next:
10/15/1975 160pf grn d=Large blast furnace with wind heater system
External links:
Colnect 40886-..and_technology
Record of changes