German, Flour Bag Seal, Stettin, RM II Seal, Image by StuE, Found by Craig Carter.
22x19mm. 8.7g.
A continuous raised circle contains on one side RM with II beneath and from another seal W.xM on the other side.
R.M. - Roggenmehl - Rye flour.
See p.15, Meelloodjes, een ‘verborgen’ geschiedenis, B. D. Poppen, "From the former German city of Stettin several seals are known, both of the Dampfmühle and of the Walzmühle. The Walzmühle was founded in 1838, located directly on the Oder, over which the grain was brought in by barges."
