Re: Bell Punch Company Limited -Plus Model 506/D/40.446

From: Simon Southwell
Email: simon@anita-simulators.org.uk

Comments

You can find a great deal of information about the history of Bell Punch and the Plus and Sumlock comptometers at Nigel Tout's excellent site: www.anita-calculators.info. In particular for your model: http://www.anita-calculators.info/html/plus_506_d.html