Colnect-135-965-Viktor-Kaplan-1876-1934-Kaplan-turbine.jpg
Source: Colnect
Issued by: Austria
Function: semipostal
Date: 12/6/1936
Denom: 64+64g
Color: dark green
Design type: Austrian inventors
Design: Viktor Kaplan
Watermark: unwmk
Perf: 12.5
Catalog value:



External links:
Colnect 17136-..bine-Inventors


Record of changes

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