I found this in the 'London Daily Chronicle' dated 19th September 1924: “YOUTH (Smart) for gramophone store; must have good knowledge of gramophone records. Premier Supply Stores, 138, High St., Shoreditch.” ...and this in the 'Sunday Express' dated 24th April 1932: “ILLUSTRATED: 39/6 - SG3 MAINS RADIOGRAM AND SG3 RADIOGRAM (Battery Model), 3 Gns. PREMIER SUPPLY STORES, 165, FLEET ST., LONDON, E.C.4.”
...and this in the 'Sunday Express' dated 24th April 1932:
“ILLUSTRATED: 39/6 - SG3 MAINS RADIOGRAM AND SG3 RADIOGRAM (Battery Model), 3 Gns. PREMIER SUPPLY STORES, 165, FLEET ST., LONDON, E.C.4.”