Old pewter saucers/coasters with hallmarks

Small pewter plates/saucers/coasters from the 18th century in pewter with a scrolled and molded edge from the 18th century. Bears two hallmarks: with initials dj And 90 surely the percentage of tin used for each saucer. Some wear marks (traces) on. Some parts see photos. Weight of 6 saucers 733g. Diameter 12cm.

Ref. : Y5WFUEK9