Data recorder set, Wild model GRE-1, for use with TC-1 theodolite, cased, by Wild Heerbrugg A.G., Switzerland, c1980, ex British Rail (North Eastern) Civil Engineer's Office, York.
Data recorder set, Wild model GRE-1, for use with TC-1 theodolite, cased, by Wild Heerbrugg A.G., Switzerland, c1980, ex British Rail (North Eastern) Civil Engineer's Office, York.
