Mir 10A 3.5 / 28mm

Mir 10A 3.5/28mm bought (new) for 384f on november 9th, 1979.

Isn't this a fine piece of engineering? nothing common with little, more compact as possible, japanese 28mm lenses, and the more compact the lens is, more bent the images are. Here is a true wide-angle lens giving minimally bent images. Filter mount: 67mm, like for the 1.5/85mm. Bought new, thus with it's traditional leather case and 3 UV, Yellow-green and Orange filters.