I worked in education for many years where Boxford 160TCL / 240TCL / 260VMC machines were used. Having retired I managed to purchase a 160TCL and a 260VMC that I'm in the process of restoring. They are both from the BBC B era but have had serial interfaces fitted and the 260VMC has also been additionally modified with the self-homing switches. Both are working despite some neglect over the years and are being repainting prior to a good overhaul. Unfortunately I don't have a manual for the 260 as I would really like a wiring diagram for it.
Stuart.