I recently purchased a teapot and cream jug from a well known online auction site (it is currently still in transit). It was described as being a silver-plated teapot and cream jug with an unidentified JG maker's mark.
After some research, I believe I have identified the maker mark as being that of Jean Granvigne. According to a previous topic, he was active in Paris from 1868-c1889 (https://www.925-1000.com/forum/viewtopic.php?t=21083
Images of the teapot and cream jug:
Tastevin attributed to Jean Granvigne with the same mark:
Yesterday, I found a nearly identical tea service which sold through a French auction house in 2013:French auction description:
Service à thé et café en argent comprenant une théière, une cafetiere, un sucrier, un pot a lait, à motif guilloché et pointillé, frises de fleurs stylisées. anses géométriques en argent ciselé, guilloché, boulé et surmontées de fleur stylisé et feuillage. Frétels à motifs de coupe et flamme. Portent le poinçon du Maître orfèvre. Poinçon Minerve. XIXe siècle. Le plateau en métal argenté assorti. Deux anses à filets noués. Signé CHRISTOFLE. Usures, chocs. Poids total des pièces en argent: 2310 g.English translation:
Silver tea and coffee service including a teapot, a coffee maker, a sugar bowl, a milk jug, with a guilloche and dotted pattern, friezes of stylized flowers. geometric handles in chiseled silver, guilloché, boulé and surmounted by stylized flower and foliage. Fretels with cut and flame patterns [I believe this was mistranslated and should actually read 'finials with cup and flame']
. Bear the hallmark of the master silversmith. Minerva hallmark. XIXth century. The matching silver metal tray. Two handles with knotted nets. Signed CHRISTOFLE. Wear, shocks. Total weight of silver coins: 2310 g.
Considering the 'master silversmith' from the French auction is not named, I am wondering if it is likely these sets were both produced by Jean Granvigne, or there is another explanation such as this being a common/mass produced design that was replicated by several makers?
Any additional information would be greatly appreciated.