Nikon 20mm f3.5 Nikkor-UD (AI converted) brand_Metabones this lens could be the

this lens could be the one for you

with some discolouration on the back and top

and just minor dust in the glass

The Blackrapid RS-7 Curve is a "right handed" strap: it's designed to sling over your left shoulder and let you grab your camera with your right hand

with minor wear from careful use

Nikon 20mm f3.5 Nikkor-UD (AI converted) brand_Metabones this lens could be theThe Nikon 20mm f3. 5 Nikkor UD is a pre AI lens that has been converted with an original Nikon AI aperture ring: it'll mount on any F mount camera, and meter on any camera with AAI or pre AI metering capability. In excellent condition, with minor internal dust, very minor paint wear. Includes plastic case.