A pair of miniature oval reverse glass or verre églomisé paintings 18th century

A pair of miniature oval reverse glass or verre églomisé paintings 18th century, painted in gilt and brown with Christ on the cross, the other with Christ in the Garden at Gethsemane, each signed with the initials CR, each mounted in an ebonised wood frame, 13cm overall. (2)

Provenance: from a private collection in Sussex.