Vintage Ernst Leitz Wetzler Hektor F 13.5 CM 145 Camera Lens Nr. 65558

I CANNOT FIND INFORMATION ON FOCAL LENGTH FOR THIS LENS, SO I WILL ASSUME IT IS FIXED, THOUGH I MAY BE WRONG. IT HAS A LEICA LENS CAP AND NICE BROWN LEATHER CASE. I KNOW LITTLE TO NOTHING ABOUT CAMERA LENSES, AND CANNOT FIND MUCH INFORMATION ABOUT THIS SPECIFIC LENS, SO I HAVE DESCRIBED AS BEST I CAN WITH WHAT INFORMATION I DO HAVE. I WILL DO MY BEST TO ANSWER ANY QUESTIONS YOU MAY HAVE ABOUT THIS ITEM OR PROVIDE ANY ADDITIONAL PHOTOS, IF IT MAY BE HELPFUL. CONDITION APPEARS TO BE GOOD, WITH SOME EXPECTED WEAR.