Cased Wild T2 gyrotheodolite no.320852, with MW77 - Gyromat serial no.110, dated 1959.
One of the two instruments used by the British surveyors of the time of the Channel Tunnel.
Cased Wild T2 gyrotheodolite no.320852, with MW77 - Gyromat serial no.110, dated 1959.
One of the two instruments used by the British surveyors of the time of the Channel Tunnel.