The earliest-known Joinville appears, apart from the flat rear bedway, to have been a straightforward copy of a 1940 South bend "Workshop" lathe
One slight difference was the provision of angled oilers on the front face of the headstock. These, as on the South Bend, filled sumps beneath the bearings from which oil was lifted through wicks.
An early example of the Joinville with tapered bronze headstock bearings
The Joinville headstock spindle bearing
1972 Joinville Model 217R with taper-roller headstock bearings
Looking remarkably up-to-date a Joinville TM-127 from the early 1980s