I was just reviewing an old set of conference proceedings
Computer Techniques
Research and Information Group of the Quantity Surveyors Committee
Royal Intitution of Chartered Surveyors
1967
In a listing I noticed a good one
the use a strike though 0 for the letter O and a O for 0
OCR that!
btw cannot tell which computer system was used, although it was
developed by Gleeds, Quantity surveyors for
Marks and Spencer and their contractors Bovis Ltd
Dave Caroline