CC Seal, Image & Found by Bob Gunnis.
Found near Gainsborough, Lincolnshire, 21.7 x 6.3mm, 16.98g.
CC in cursive script // undeciphered design
No product, company or organisation has yet been associated with this seal.
Also recorded as
PAS NLM-7A4E71.
See
Russian CC seal 1 and
Russian CC seal 2.