(Helen)
Finish: Silver plate
Source: ANTIQUE DECO STORE on eBay.com
Note the double octave keys on this soprano. Also the range is low B to high Eb.
This horn is quite a mystery. In all the research that I have done on the brand, I have not uncovered any other saxophones, only brass winds—and some very unusual ones at that. [It's possible that] Decart Freres had their saxophones stencilled by another French manufacturer like Dolnet or Buffet.
The seller stated the horn dated from 1894. I would sure like to know how he came up with that. Nothing that I've seen would lead me to any conclusion about a range, let alone a definite year of production.
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.