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PENTAX ASAHI TAKUMAR K (BAYONET) MOUNT 135MM F/2.5 TELEPHOTO PRIME LENS : Amazon.ca: Electronics
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File:Vintage Pentax ME Super 35mm SLR Camera, Aperture Priority, K Bayonet Mount, Made In Japan, Circa 1980 - 1986 (13364865963).jpg - Wikimedia Commons