Helios-44 13 blades S/N 0099883 M39.EXC!!! Helios-44 58mm f/2.0 13 blades M39 KMZ Biotar copy rebuildt NIKON F mount . INFINITY IS.
 EXCELLENT condition, all works good.You can try a quality of 50th on your DSLR NIKON cameras now.
A helicoid ring and aperture are spinning well. An aperture have not any oil.
Lenses (given their age) are in a perfect condition. GLASS have not any scratchers , funguss , dust inside . GLASSES have  couple unvisiable cleaning marcs and couple bubbles like old sonnar lens.There is no any influation on picthure quality.
LENS cames with front and rear caps and nikon adapter.ATTENTION!! I SEND ITEMS TO CANADA and  AUSTRALIA only by EMS express. Shipping cost for this item to Canada compose 35$ to Australia- 40$