Wilkinson Folding Guinea balance
1785-1801
Wilkinson-type folding coin balance
1790-1800
Wilkinson type Guinea balance
1817-1820
Automatic combined Guinea and Sovereign balance
1820-1840
Folding pocket coin balance
Folding Guinea balance, in mahogany case, 1785-1801
1785-1801
Wilkinson-type folding coin balance with weights
1800
Wilkinson-type folding coin balance in brass case
1800
Wilkinson folding Guinea balance (steelyard type)
1785-1801
Wilkinson type folding Guinea balance by J. Mountford
1775-1810