I ought to know this as I'm atracted by strange musical instruments but I was lsitening to the Clarence Williams Blue Five recording last night where Bechet plays sarrusaphone as well as soprano sax. It sounds like a less smooth baritone sax or a bass kazoo(!).
Was it one of those hybrid brass/woodwind instruments that had a brief vogue? Does any 'catter know? No photos in any of my jazz books.
RtS