HELIOS - 44M 58mm F2 LENS , M42mm SCREW MOUNT . M42mm Screw mount. Front cap supplied. Not perfect but perfectly usable , one tiny fungus puff and a fine hair , no scratches or haze , some minor dust only etc nice bright lens waiting to be used . The iris works perfectly and no oil , CLEAN . . The focus is OK  , and grippy too , you won`t find the lens slipping out of critical focus. Small normal signs of use to the exterior barrel etc . Free UK P&P ( costing me £4.50 )