German, Hoyermann Phosphate Factory, Hannover, Seal

German, Hoyermann Phosphate Factory, Hannover, Seal, Image by StuE, Found by Jammy Ged.
Found in Yorkshire, 22mm. 16.6g.

See other Hannover phosphate seals from which this has been identified.

From Paul Cannon:- "From the following I can suggest the probable unreadable letters on these seals. They most likely read around the circumference: PHOSPHATFABRIK HOYERMANN and across the centre HANNOVER ie Hoyermann Phosphate Factory, Hannover. The following is a link to a paper seal of the same company which incorporates the same PH monogram within a six pointed star Phosphatfabrik Hoyermann - Hannover.
They are all definitely chemical fertiliser seals. For a description of the founder of the firm Gerhard Hoyermann see Gerhard Hoyermann, Wikipedia. The following is an extract: “he developed from phosphorus slag a blast furnace plant fertiliser ‘basic slag’ for agriculture. In 1881 he founded the Peine phosphate factory, which was followed by other factories in Germany, Bohemia and England.’"

This is a British seal from Leeds but the owning company is German - See BSG.BS.02017 for another, clearer example.