Colnect-122-054-Salt---Crystallography.jpg
Source: Colnect
Issued by: Great Britain
Function: postage
Date: 3/2/1977
Denom: 13p
Color: multicolored
Design type: chemistry
Design: salt
Watermark: unwmk
Perf: 14.75x14.25
Catalog value:

In collections: mint (Stan Shebs)

External links:
Colnect 2461-S..rthern_Ireland