Switzerland - 90(c) stamp of 1992 (#297759)

Source: Colnect

Issued by:	Switzerland
Function:	postage
Date:	3/24/1992
Issue:	100th Anniversary of the Geneva Conference on Organic Nomenclature
Denom:	90(c)

Color:	multicolored
Design:	Difluorbutane molecule 3 different formula
Watermark:	unwmk
Perf:	11.75


Catalog value: