KIPON Macro Lens Mount Adapter M42-L/M MACRO WITH HELICOID B&H
Yashinon Tomioka 60mm f2.8 1:1 macro lens M42 mount [Rare] Low Serial No 680760 – ASA College: Florida
MC Volna-9 MACRO, 50mm F/2,8. USSR Lens For Zenit, Pentax. M42 | eBay
Walmeck M52-M42(17-31) 17mm-31mm M52 to M42 Mount Lens Adapter Ring Macro Extension Tube Helicoid Lens Focusing Adapter Ring for Macro Photography - Walmart.com
Industar 61 L/Z MC 50mm F/2.8, Macro USSR Lens For Zenit, Pentax. M42 | eBay
Pentax 100mm f/4 Super-Multi-Coated Takumar Macro Manual Focus Lens for M42 Screw Mount {49} at KEH Camera