I recently picked up a White just like this only electric. I am thinking about trying it out on the treadle. I use the black rubber belts and like them a lot, but I like the price on the tubing better. I tried the black belt on a Singer 99K I recently picked up and the bobbin winder wheel gets in the way.
Anyway, pretty machine, I especially like the treadle base. And, HBD!!!
Jp