1970’s Vintage sweater 1/2 zip

In excellent condition considering its age. No pilling around the arms or across the front that would be visual signs of wear. There are a couple of darker spots on the front that I haven’t tried to remove, and also a couple little areas where the stitch was missed duri the making of the garment. I just want to be clear as to what I’m seeing. And pictures of these areas are noted. Still an amazing sweater!!! No tag with a size 19” pit to pit 24” shoulder to wrists 26” shoulder to hem 1118