Zunow 1.1/5cm Nikon RF 1955 Yoshi Takei 13 Jul 2020 Lenses Extremely rare early Zunow 1.1/5cm rangefinder camera lens in original Nikon RF S mount, “Ping-Pong ball” version, bayonet lock repaired, Made in 1955. Photo credit: © Leitz Photographica Auction