Stratford Co-Operative Society, Maryland Street, Stratford, Greater London
The Comptometer room at the Stratford Co-operative Society, showing girls and boys working on model 'E' comptometers. The comptometer, invented in 1887 by American, Dor Felt, was the first successful manual calculating machine. Many of the boys and girls look very young to be at work. The school leaving age was only raised to 14 in the Education Act of 1918 so they could well have been younger than that.