French, 70 x 44 mm, circa 1830
A very fine and decorative porcalain watch key "Guardian Angel"
Case: porcelain and gilt silver mount. Both sides with polychrome painted porcelain plaques. On the front side a portrait of a young girl with brown hair wearing a white dress, a landscape of trees and mountains in the background. On the reverse, on a pale blue background, the depiction of a winged angel holding a frame with banner: "AMO VERITA" ("True Love").
Illustrated and described in: "The Keys of Time" by Yves Droz, France 2012, p. 178-179.