I used to have a Conn NW Bari from around 1926. It was restored when I got it and looked great with the matt silver finish and the gold wash bell. People would comment on it at gigs. I was playing in a salsa band and the sound man used to turn me up in the mix as he was digging the sound of the bari with those low notes.
I played it for 10 years but never could get comfortable with the spread of the right hand keys so I sold it on ebay for what turned out to be a cheap price. I should have kept it and had the keywork modified and the octave pip modified to improve the intonation around the middle E as posted about by someone a few years ago.
I may rejoin the club again one day with a 6 or 10M.