The Ricoh Auto Rikenon 55mm f1.4 is an unusually big and heavy lens. It’s not huge or anything, but it’s certainly larger than a Takumar. What’s the payoff? Excellent image quality and a great look, which sounds pretty good to me. In excellent condition overall, with minor internal dust, very minor coating marks. Manufactured by Tomioka for Ricoh. A rare-ish lens in nice shape.