According to Dave Kessler, whose shop was an authorized B&S dealer,
the Series 2001 and Medusa were pretty much the identical horns.
This is how he described them on the Kessler & Sons website:

The B&S Series 2001 is the predecessor to the Medusa.
For the tenor sax, the body tube is the identical design to the Medusa.
There are only a few minor differences in key design.
Here are the few differences we have been able to identify:

Series 2001: Low C/D# Cluster 2 Separate Rods. Medusa (Series 2006): 1 Split Rod Mechanism.
Series 2001: LH C#-B Rollers are 2 Separate Rollers. Medusa (Series 2006) 1 Roller; 1 Tilting Connector Roller.

  • Eb Alto 00667 Eb Alto 00667
  • Eb Alto 012660 Eb Alto 012660
  • Eb Alto 013587 - Series 2001 IV Eb Alto 013587 - Series 2001 IV
  • Eb Alto 502 Eb Alto 502
  • Eb Alto Serial # ? Eb Alto Serial # ?
  • Eb Alto Serial # ? Eb Alto Serial # ?
Page generated in 0.037 s (21 SQL queries in 0.025 s) - Powered by Piwigo

If you want to change how many album pictures per page, use CTRL+ and CTRL- (Command + and Command - if you have a Mac).  80% looks great on my 4K monitor.