Adding to local Heritage Collection

Stephen Petter with Guy Petter's adding machineSSDC’s Community Heritage Access Centre has received an important donation from the Petter family – founders of Westland Helicopters – in the shape of an adding machine. The machine has been given by Mr Stephen Petter, grandson of Guy Petter, the inventor. The machine weighs four and a half kilograms and is mechanical which means it operates without any electrical supply. Full story: Read more