Postby dognose » Fri Aug 19, 2011 7:08 pm
The '8030' would be a pattern or batch number used by Boardman, Glossop & Co.
As far as I'm aware, that mark was used at the end of the 19th century. Boardman, Glossop & Co. were bought out by Frank Cobb & Co. of Sheffield in the mid 1920's.
Just to add a piece of trivia, Boardman and his wife were found dead in bed, the victims of gas poisoning, in 1912. They were aged 77 and 78 respectively.
Trev.