Colnect-2588-068-Seismograph.jpg
Source: Colnect
Issued by: Turkey
Function: postage
Date: 9/8/1980
Issue: 7th World Conference on Earthquake Engineering
Denom: 20l
Color: multicolored
Design: seismograph
Watermark: unwmk
Perf: 13
Catalog value:



External links:
Colnect 199789..ering_Istanbul