Vintage Darlot 100mm brass lens. Serial number: No. 965. 90° angle. Total height: 37mm. Front lens diameter: 25mm. Screw thread diameter: 49mm. 
Good condition. Presence of some traces of wear. The diaphragm is working properly. Clean lenses overall. Presence of some scratches on the rear lens. 
Antiq-Photo establishment
Vintage Darlot 100mm brass lens. Serial number: No. 965. 90° angle. Total height: 37mm. Front lens diameter: 25mm. Screw thread diameter: 49mm.  Good condition. Presence of some traces of wear. The diaphragm is working properly. Clean lenses overall. Presence of some scratches on the rear lens.