Backplates

18th Century : Flat 'penny' backplate with steep chamfered edges.

19th Century : Raised convex starburst backplate.

19th Century : Backplate with raised inner rim and chamfered edge.

19th Century : Large raised plain convex backplate with flat reverse.

20th Century : Backplate with raised convex design and concentric grooved decoration.

19th Century : Backplate with raised plain convex design.