ASLIB EXHIBITION OF PHOTOCOPYING EQUIPMENT Available to Purchase

This exhibition was held at Aslib from 1st September to 30th November 1959 and was attended by approximately 150 individual visitors from 100 organizations, forming a representative cross‐section of Aslib's membership. Some visitors were clearly disappointed at finding only a small number of machines on display, all of which used basically the same process, i.e. diffusion transfer. The machines had been chosen on the strength of their ability to copy from bound volumes as well as single sheets, and this principle of selection more or less determined the nature of the process involved.