Canister of "Soneryl sodium" capsules (butobarbitone) with half of the contents remaining. Height 96 mm; diameter 47 mm, weight 49g. Inscribed '100 capsules each 0.15 Gm. 123/ TRADE MARK 'SONERYL SODIUM' BRAND/ Butobarbitone Soluable/ POISON/ .../ MAY & BAKER LTD./ DAGENHAM ENGLAND/ G X.247/ Distributors/ PHARMACEUTICAL SPECIALITIES/ (MAY & BAKER) LTD./ DAGENHAM ENGLAND'. Distributed by May and Baker Ltd., Dagenham, London. English, 1940-1960. Canister of 'Soneryl Sodium' capsules 1940-1960