I wrote back:
Early comparisons lead me to suspect it is a Pan American. That was Conn's student line at the time, built in a separate factory that Conn purchased so they would have two lines of horns. Originally they were designed by an entirely different set of people, and they never got the fancy Conn features like the rolled tone holes.
Nevertheless, they were solid horns, and their stencils were pretty much exact copies of the Pan American-branded instrument.
Here's one that was recently offered on eBay that has the Mercedes C key cover.
http://www.ebay.com/itm/PAN-AMERICAN-C- ... rt=nc&_trk sid=p2047675.l2557
Here's another that only shows one photo. But look at the shape of the keywork starting with the right-hand palm keys and going left all the way to the way the key work for the lower octave key pad curls around.
I haven't found a photo that shows an exact match for your left-hand pinky keys, but I have a photo from a later Pan American that is very close.
Thank you for the story of how an "A Capella" preacher wound up buying a saxophone from the family of a fellow who died of syphilis. My wife's family has a similar story about an old mandolin that was owned by an Appalachian uncle who was knifed in a bar in New York City, and chased the victim out of the bar, mandolin in hand, until he collapsed and died. So maybe the mandolin is the "devil's instrument." Unfortunately, they stored it in the attic with the strings tight and its face turned into a roller coaster before they should it to me and told me that as the musician in the family I needed to keep and treasure it indefinitely. I declined. At least your family heirloom with the dark past is playable.
I started playing my tenor in church back in the 1970s, and got pretty good at making up my own parts. About eight years ago I started playing my tenor in our present church, again with no music to speak of. But after a time, I was asked to stop playing because a violin player who needed sheet music was jealous and demanded that the worship leader print music up for her. It was easier for him to ask me to stop playing. Gotta love 'em.
I miss it, but I have so many other things going on musically, I don't miss it TOO much. Sometimes they let me play guitar when all the guitar players they like better are out of town, so I keep my hand in, in a sense.
And that's interesting in itself, because 40 years ago when one of the church's other guitar players started bringing his guitar to church they told him he was in sin because it was the "devil's instrument." But his aunt was a founding member and threatened to leave the church if they didn't let him play, so they did. I guess we've all played the "devil's instrument" at one time or another.
Have a great day,
Paul Race