The Washburn SBF24 (Solid Body Folk) was a single round cutaway dreadnought guitar. This was a thinline semi-solid body acoustic/electric guitar with an active piezo pickup designed to play like an electric but sound like an acoustic, with no feedback problems. The SBF24 had a select spruce top with a CNC channeled semi-solid mahogany body, mahogany neck, rosewood fingerboard and bridge. The SBF24 is listed in the 1988 Washburn price list - but may have been made earlier than that (possibly in 1986). Washburn discontinued the SBF24 in 1992 - probably replaced by the SBF80 model. There was also a 12-string version: the SBF-24-12 model.