Rollei Rolleinar-MC 1:4/21mm _ QBM mount _ *(Voigtlander)
With QBM mount. The lens was manufactured by Voigtlander. Rollei Rolleinar-MC 1:4/21mm. The glass is clean, without scratches, discoloration, matting or dirt inside. The only signs of use are on the bayonet mount.