Does anyone play cello guitars anymore?

Cello or "arch-top" guitars aren't as popular as they once were. You sometimes see them used by jazz or blues players. From what I can determine from the web, May Bell guitars were marketed by the drum company Slingerland in the 1920's and 1930's. There is a reference to Regal and Harmony being the actual manufacturers. I found one reference where the owner "thought" their guitar was made by Gibson: http://www.flyingblanket.com/geardetail/78 however I suspect they are confused because Gibson/Gretsch didn't acquire the Slingerland company until 1994. Most of the references I can find are from people who acquired their instruments for around a hundred dollars. My gut feeling is that you have an instrument with more sentimental than monetary value.

This person is a collector of Slingerland/May Bell instruments and can probably give you some idea of the value of yours: http://www.slingerlandguitar.com/ If you want to pay for an accurate appraisal, contact Gruhn Guitars: http://www.gruhn.com/