Guitars  < Guitar Models Ervin Somogyi makes six main models of acoustic steel string guitars: jumbo, dreadnought, "modified dreadnought" or Mod-D, OM, OOO and OO models. He can make any of these models in a 12-Fret version He also makes classic and flamenco nylon string guitars and many other custom instruments with unusual features such as fanned fret fingerboards, tapered bodies, double heads, etc. Jumbo Dreadnought Modified Dreadnought OM OO OOO 12-Fret Classic Flamenco ©2010, Ervin Somogyi, all rights reserved. Website designed by HYPERSPHERE.