ICL Card Gauge

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This ICL Card Gauge is made from Stainless Steel and is an E.S.O Tool No: 590497.  It comes complete with plastic wallet.

This gauge was designed by ICL. It was used to check the accuracy of punching so a machine could be adjusted. The one shown is a Field Service version but there was also a "master gauge” which was more substantial, had bars instead of pins for the registration, and came in a wooden box. This unfortunately we do not have.

Other examples of this gauge, with the same E.S.O. Tool No., have been found that are labelled 'ICT Card Gauge' (ICT being one of the companies that was merged to form ICL in 1968).  Our example is definitely from the ICL era.


With grateful thanks to Mr R J Wiseman for the gauge and Mike Swann for the description.

Date : Unknown

Manufacturer : ICL

This exhibit has a reference ID of CH2533. Please quote this reference ID in any communication with the Centre for Computing History. 		 

Scan of Document: ICL Card Gauge

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