top: left to right, Ginger Mamma porcelain, gingerbread porcelain ( EST embossing), Isorex 35/1 green light, Isorex 35/1 large base variation, Isorex SNCF 35/1 bottom : rare unknow with "EST" on top, Verreries de Reims, Isorex 9367 (exit with or without 9367 )

Missing ( for the moment lol ) the Folembray's "est" insulators