Dental operator's stool with flexible stem, by Cottrell and Co., London, 1950-1960 Dental operator's stool with flexible stem
Workroom aperator's stool, saddle type, on tubular stand, English, 1930-1940 Workroom aperator's stool 1930-1940
"Powerlift" dental operator's stool, one of two, by the Amalgamated Dental Co., London, 1979 "Powerlift" dental operator's stool