Add-Lister

Burroughs Portable Adding Machine

Burroughs Portable Adding Machine

Serial No. P167094S

Date: 1950s/60s

Price paid: £2.99

‘Portable’ in this case means , ‘It’ll go in the back of the van.’  It weighs more than 10 kilograms.  The ‘S’ in the serial number probably stands for Sterling currency.  This machine has been converted to decimal currency, which was introduced in the UK in February 1971.  The blanks where the 11 penny keys once were can clearly be seen.