What system is a regular clarient? (albert/ohler/boehm)?

Question

I have a bundy 577 clarinet. Its the regular kind used in school bands. I want to know what system it is: Boehlm, Ohler, Albert (also called simple)? Which is it? Please tell me your credentials when answering

Answer 1

Boehm.

Ohlert, Albert, and Simple (not exactly the same as Albert) are older, less effective key systems.  You still can find a good number of them, Albert and Simple especially, on ebay, if you're interested in getting a look at a picture or three.