Digitising table (white board) for Ferranti Freescan digitiser, used to computerise OS maps, by Ferranti Ltd., British, 1969 Digitising table (white board) for Ferranti Freescan digitiser 1969
Ferranti Freescan digitiser with table `01', keyboard and cursor, used to computerise OS maps, by Ferranti Ltd., British, 1969 Freescan map digitiser, British, 1969 1969