Ah yes, Joseph Asbury would be the fella. What is/was the name of the device that was used to profile the tubes set? I think it was something like an inverted "U" that moved on a rail, forward and aft, with the tubes set centered under the device, profiling the sides?

Lagopus, were you not closely involved in the decimalisation of Britian in 1971 and if so when are you going to help us tote up our ciphers and give us yet another lesson in converting Schillings?(L.s.d.) to pounds?

Kind Regards,

Raimey
rse