Bachot vs. Bretschneider

I was wrong. Bachot probably had nothing to do with Ramelli's Schatzkammer, mechanischer Künste. The "AB" I had noticed was probably for the engraver hired by publisher Henning Grossen den Jüngern, Andreas Bretschneider. The SI has details.

Bretschneider has some history. I came across a blog entry by misteraitch that provides more detail on other work by Bretschneider.