"Stimex" combination gas range no. 8706, of cast iron construction with 7-radiant gas fire, Stimson's patent University hot water circulator, boiler, lagged oven, grill, 3 boiling burners and enamel drip tray, by Stimex Gas Stove Co. Ltd., 1922 Stimex' combination gas cooking range, fire and water circulator, 1922. 1922
Holweck type molecular vacuum pump by The Mullard Radio Valve Co. Ltd., Balham, London, 1920-1926. Holweck type molecular vacuum pump by The Mullard Radio Valve Co. Ltd. 1920-1926
No.19 cast iron gas boiler, designed and made by Thomas Potterton (Heating Engineers) Limited, Balham, London, England, 1930 Thomas Potterton No.19 cast iron gas boiler 1930
No.13 cast iron gas boiler, designed by Thomas Potterton and made by Thomas Potterton (Heating Engineers) Limited, Balham, London, England, 1915 Thomas Potterton No.13 cast iron gas boiler 1915
Boiler casing corner fragment, cast iron, for No.13 cast iron gas boiler, designed by Thomas Potterton and made by Thomas Potterton (Heating Engineers) Limited, Balham, London, England, 1915 Boiler casing corner fragment, cast iron, for Thomas Potterton No.13 cast iron gas boiler 1915
No.13 cast iron gas boiler, with separated cast iron boiler casing corner fragment, designed by Thomas Potterton and made by Thomas Potterton (Heating Engineers) Limited, Balham, London, England, 1915 Thomas Potterton No.13 cast iron gas boiler, with separated cast iron boiler casing corner fragment 1915