NY City, 1881 - 1962, George Borgfeldt, Marcell and Joseph Kahle. George Borgfeldt & Company was located in New York (1881-1950's) and was an importer and assembler of dolls for the American and Canadian doll markets (in other words they did not manufacturer their own dolls).
They also distributed American dolls for: Aetna Doll Company, Bergfeld & Son, Dreamland Doll, Cameo Doll Company and K & K Toy. Some dolls distributed by this company may have a "G. B." marking on them, others will not and have only the marking from the manufacturer.
What's it worth? Take a look at this Borgfeldt price guide: sold listings for a value indication.