The Erma is based on concert sized Stella's made by Oscar Schmidt in Jersey City, NJ. The Erma is a favorite of blues players. It is likely what Blind Blake played, and it is the model that Mother Maybelle Carter played on her first recordings, before she bought her iconic Gibson L-5. I used an old Stella that was my go to guitar for 15 years for the model. I've toured with a new Erma and it was louder and more comfortable than the old Stella, and much more reliable. Still, I often forgot that I wasn't in fact playing my old Stella. It's smaller in size, ladder braced, loud and punchy. Wider than the parlor sized Loretta, shorter than the 0 sized Annunziata. The lower bout is 13 1/2", with a 24 7/8" scale.
Here I am putting an Erma through the paces before I send it off to it's new home.