Exceptional find for collectors of early Nikon rangefinder and Nikonos gear! This is a genuine Nikon slip-on front lens cap specifically designed for the classic W-Nikkor series (such as the W-Nikkor·C 3.5cm f/3.5 or f/2.5, and similar wide-angle lenses) and UW-Nikkor underwater lenses from the Nikon S-mount rangefinder era (1950s–1960s) and early Nikonos systems.
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