Underside faience of Gien decoration mushrooms

This charming set of 3 undersides, one large and two smaller, consists of a gien enamelled earthenware tile (gien france in relief below) set in a gilded metal frame, probably brass. The three tiles are decorated with the same country pattern in pretty colors in autumnal, brown and orange tones: mushrooms of the woods. I think they date back to the 60s or 70s. They are in good condition, neither cracked nor missing and the tiles fit well in the frame, but they have some small signs of their age: some small abrasions on the sides of the tiles at the points of contact with the golden frame. The large tile measures 15 m side and 17 cm side with the frame, the small ones measure 11 cm side and 12.5 cm side with the frame. The set weighs 600 g.