Serial number - 567758. Lens is in good shape with nice looking glass, without fungus scratches etc. Focus and aperture rings move freely without any resistance. Everything works perfect. Lens compatible with all M42 Screwmount cameras, also you can use it with any digital cameras with adapters from M42 Screwmount to your mount.
LENS IS IN EXCELLENT CONDITION THROUGHOUT & ALSO IN PERFECT FULL WORKING ORDER & IS READY FOR USE. BODYWORK IS NICE & CLEAN THROUGHOUT & LENS FOCUSING IS ALSO NICE & SMOOTH THROUGHOUT THE SCALE. LENS APERTURE SETTINGS ARE 100% WORKING & THE IRIS BLADES ARE ALL NICE & CLEAN & FREE OF ANY OIL RESIDUES.