1955 Danelectro U2 prototype (black) — one of the earliest known U2 models, distinguished by its aluminum‑reinforced neck, “bell” headstock, and clear plexi logo (features unique to this rare prototype). This early lipstick-pickup version retains the original factory aluminum bridge (instead of later chrome-plated steel), and its input jack lacks the standard plate found on later U2s.

It plays with a straight, stable neck and smooth low action, and the pickups and electronics function perfectly. Cosmetic condition is excellent for its age, with only a sealed headstock hairline and an original lower strap button in fair shape. A historically significant piece from the dawn of the U-series—a rare, lightly hollow Masonite body guitar built with aluminum era engineering and distinctive mid-'50s design. Perfect for collectors and players seeking a true vintage prototype.