Pentax 85mm f1.8 Super-Multi-Coated Takumar M-42 mount #5682032 | eBay
Pentax Asahi 55mm – The Photography of Adam Woodhouse
Amazon.com : PENTAX Super Takumar 135mm F3.5 F/3.5 M42 Screw Mount MF Lens (S/N:3940660)#55858 : Electronics
Opteka 85mm f1.8 Review on Sony APS-c - YouTube
Amazon.com : TTArtisan 100mm f2.8 Bubble Bokeh Full Frame Lens M42 Mount for Screw Mount Cameras 49mm can be transferred to All mirrorless and SLR mounts (M42 Mount) : Electronics