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of 393 City Road, London, EC1. Telephone: Terminus 2571. Cables: "Omokotoys, Barb, London"
Presumably this was the business of Julius Kohnstam (b.1873 in Bavaria) who was a merchant in toys and fancy goods.
1920s The business was established in London in early 1920s.
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Dolls, Dolls Furniture, Dolls Houses, Dolls Perambulators, Musical Toys, Forts, Farms, Rattles, Soldiers, Tops. (Olympia, 2nd Floor, Stand No. J.2237) 
Presumably later connected with the Moko firm of Moses Kohnstam which distributed products for Lesney.