Backplate - Raised Large Petal

(Note: Measurements are outside max. dimensions unless stated otherwise).

18th Century : Raised 'jellymould' backplate with hollow reverse.

Diam. 71mm. (2 13/16")
Thickness (variable) 2.5mm. (1/8")
Height 11mm. (3/8")
Hole 9mm. x 9mm. (5/16" x 5/16")
Thickness at centre rebate 3mm. (1/8")
Diam of inside rim 21mm. (13/16")