TMP12/NI Royall Tri Cone 12 fret resonator TAMPA TMP14CSC/NI Royall Tri Cone 14 fret resonator TAMPA CUT SC TMP12SQ/NI Royall Tri Cone 12 fret square neck resonator TAMPA SQUARE DLT12/DSB Royall Tri Cone 12 fret resonator DELTA DLT12SC/DSB Royall Tri Cone 12 fret resonator DELTA SC CH12/BRS Royall Tri Cone 12 fret resonator CHESS CUTAWAY 12 CH12SC/BRS Royall Tri Cone 12 fret resonator CHESS CUTAWAY 12 SC KOA12 Royall Tri Cone 12 fret resonator KOA 12 KOA12US Royall Tri Cone 12 fret resonator KOA 12 US KOA12SC Royall Tri Cone 12 fret resonator KOA 12 SC KOA12LS Royall Tri Cone 12 fret resonator KOA 12 LS KOA12DS Royall Tri Cone 12 fret resonator KOA 12 DS