The label says 380V, which is standard 3ph voltage in Europe.
Hardinge UK originally used (cast iron body) 0.5/1.5hp Newman motors, made in Yate, Bristol, UK. There were only 2 voltage choices in the factory, 220v (usually for France) or for UK and other parts of Europe such as Germany, the motors were dual voltage, 380/440v. Around 1975 another make of motor was introduced, (die cast alloy) 0.7/2.0hp Brown Boveri. These were lighter weight motors,but more awkward to get into alignment due to having a fixed position spacer system for the pulley, and they made a most awful yowling noise when starting.
PS. I cannot see the advert, or the pictures that you boys are talking about so I can only speak from my experience from working at Hardinge UK. The power feed control boxes on the tailstock end of the machine was originally a cast iron job. These were changed later for aluminium castings.
The HLV-H "top half" (bed, headstock, carriage, cross-slide, toolpost, tailstock) was also used for the UK's KL-1 designated build - they were interchangeable. Only the pedestal unit (bottom half with electrics panel, motor, speed control etc) were updated to become KL-1. This pedestal assembly was basically copy-drawn from American spec drawings sent to us direct from our USA bosses (Elmira, NY?) I was the draughtsman who copied and modified the drawings to suit our UK manufacture, I remember it pretty well!
Regards, Barry.