The Musicians Hall of Fame and Museum - *Spotlight Instrument of the Week* This 1950's 6-string Danelectro Longhorn guitar was modified into a 4-string bass by founding member of the E Street
Danelectro's UB-2 and the Early Days of 6-String Basses | Reverb News
Baritone & Bass | Danelectro Guitars
Used Danelectro Six String Electric Bass Guitar Green Sparkle | Cream City Music
Danelectro's UB-2 and the Early Days of 6-String Basses | Reverb News
History of the Six-String Electric Bass - Bass Musician Magazine, The Face of Bass
Six-String Basses from the 1950s and '60s | Vintage Guitar® magazine
Danelectro Standard Shorthorn Model 3612 Electric 6-String Bass Guitar (1961/4) | RetroFret