Silver

James Beattie 1790 or John Boyer 1794 or Joseph Barnard 1798 or John Blake 1803 or John Bunn 1806 or John Blades 1812 or John Brent 1820 or John Blades 1827 marks

1 mark.

Marks
1

Marks & lettering

1 mark
James Beattie 1790 or John Boyer 1794 or Joseph Barnard 1798 or John Blake 1803 or John Bunn 1806 or John Blades 1812 or John Brent 1820 or John Blades 1827 mark

silvercollection.it

Undated

IB

Illustrated London 1806 hallmark.

London

The source lists alternative attributions: James Beattie (1790), John Boyer (1794), Joseph Barnard (1798), John Blake (1803), John Bunn (1806), John Blades (1812 or 1827) and John Brent (1820). These dates are attribution clues, not a mark-use interval.