lathe steady REST Panova _ New

[Toolmaker51]

Isn't it just coarse feed turning marks? Guess he DIYed the tool out of square stock, turned a taper to it,
then torched the tip and bent it before he finally brazed a carbide tip on it?

Ooooooh, the cutter! Little too focused on the work; typical for me.
But DIYSwede has explanation of what is uber plausible. That taper and finish marks fit right in with hand generated cutter movement.