I just purchased a bracelet with the same hallmarks. I have learned from reading on the Mexican hallmark site that T is for Taxico and the R represents the designers last name and the number that is then hyped is the number of silversmiths working in that town I would also like to know the last name and the time frame that he worked.
Hi, The registration code number is TB 118 for Taller de Platería Fer´S .925 (Silver workshop Fer´S) Fuentes de los Pinos, Panoramica, 46 Centro - Taxco de Alarcón, Guerrero