Creda electric cooker with oven, cast metal hotplate-griller, red-ring hotplate (a later addition); one of the early electric cookers to be fitted with a Credastat automatic oven thermostat patented by the Credenda Conduit Co. Ltd. of Birmingham, whole cooker enamelled in mottled pale grey, by Simplex Electric Co. ltd., Birmingham, 1933 Creda New Series electric cooker fitted with Credastat thermostat 1933