Colnect-3925-611-Seismograph.jpg
Source: Colnect
Issued by: India
Function: postage
Date: 1/10/1977
Issue: 6th World Conference on Earthquake Engineering
Denom: 2r
Color: violet black
Design: seismograph
Watermark: Asokan capital
Perf:
Catalog value:



External links:
Colnect 578215-Seismograph


Record of changes

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