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Source:
Colnect
Issued by:
Berlin
Function:
semipostal
Date:
4/10
/
1981
Issue:
youth 1981
Denom:
50+25pf
Color:
multicolored
Design type:
optical instruments
Design:
Äquatoreal approx 1820
Watermark:
unwmk
Perf:
13.75
Catalog value:
Prev:
40+20pf d=theodolite approx 1810
Next:
60+30pf d=microscope 1790
External links:
Colnect 40974-..al_instruments
