German, Kassel Seal

German, Kassel Seal, Image & Found by Mika Heikkilä‎.
Found in Finland, 18mm.

...O VOR(I) curving down (C)ASSEL curving up // faint stamp

Heidi Jonkman identified it as possibly being Kassel - Germans spelled it as Cassel until 1926.

No product, company or organisation has yet been associated with this seal.