Hubbuck's Patent White Zinc Paint Paint Seal, Thomas Hubbuck & Son, Image & Found by Simon Bourne.
Found on the Thames Foreshore, 19mm.
HUBBUCK'S curving downwards / royal crest / WHITE / ZINC / PATENT LONDON curving upwards // same
From Simon Bourne, "It says Hubbard's White Zinc Patent London and a coat of arms, identical on both sides. It turns out to be a large paint maker, you can see more here Grace's Guide (Thomas Hubbuck and Son of 24 Lime Street, London, 1852, Hubbuck's Patent White Zinc Paint. In 1890 the company was registered on 18 August, to take over the business of the firm of the same name, patent white zinc paint, oil and colour merchants and manufacturers)."
From Tim Hubbuck, "The factory was founded by Willlam Parker Hubbuck my 4th Great Grandfather in 1765 in Red Lion Street, Shadwell. It started by supplying oils & paints for ships. The real break in the family fortune was when William Parker's grandson Thomas discovered that they could produce Oxide of Zinc commercially. It started exporting round the world in particular to India, China, Cuba & the West Indies.
The family made huge amounts of money but after my Great Grandfather's death in 1901 age only 41 the company lost it's momentum. My Great Uncle & Grandfather did not have the same entrepreneurial spirit and spent more time living the high life & gambling on the horses. The factory was bought out in 1965 & moved up to Glasgow. I believe it was still running up until the 1990's."