The incuse mark for silver attributed to Waterhouse and Co illustated on page 378 of The Silvermiths of Birmingham and their Marks 1750-1980 could perhaps with confidence be attributed to the partnership of Thomas Waterhouse and Joseph Jukes junior. According to the Morning Chronicle of the 26th Feburary 1806 this partnership of silver platers was dissolved on Jan 1st 1806.
Heamatite