Here’s an image of Mick’s pole lathe where my bowl and plate were created.  It’s hard to see all the workings from this view but it’s a pretty great set-up.  Unlike a modern, continuous motion lathe, the cutting is done on the down-stroke (about 2 1/2 revolutions) and the spring returns the system to the “up” position.  This type of woodworking is done with green wet wood; in this case, alder.