Heavy engineering lathes

The large engineering lathes must be very rare, possibly non have survived as they would be beyond the ownership of amateurs so would rapidly become outdated and scrapped. They follow their smaller cousins in exactly the same design of bed, worms & wheels etc.  Shown below is a photo taken from Pittlers catalogue and shown in the Jan 1893 issue of 'Machinery' a publication from the USA but posted worldwide. It doesn't mention which model is featured on the photo but they were available in sizes AHH,BHH,CHH,DHH,EHH with height of centres 6" 8" 10" 12"  Both D & E lathes are 12" & 5ft centres but the D lathe has a larger spindle bore of 2 inches compared to 1/5/8" for the E. The weight however is a considerable difference with the D being 6,200 lbs  whereas the weight for pattern E is given as 4,600 lbs  Clearly visible is the universal telescopic joint, this was available as an extra on the smaller B2 lathes and provided as standard on some of the earlier C3 lathes. It was used to power some of the accessories such as the automatic ball turner and also power cross feed.