Nikkor Nikon Zoom-Nikkor 25-50mm f/4 Ai-S Lens
Tested, fully functional. 
The lens barrel has some minor rub marks, scratches, and paint wear. 
The glass is in excellent condition, free of scratches, rub marks, fungus, and haze. 
The aperture blades move smoothly and are free of oil. 
The focusing and zoom are smooth. 
It comes with Nikon metal screw-on front and Nikon rear caps.