This is a VERY interesting scope. I think it was a prototype that never got into production. One of the first scopes that allowed both range estimation AND zero adjustment based on range.
There are 3 dials included - 2 for various bullet trajectories and one to make your own zero adjustment profile. Crosshairs allow for estimating distance, with the distance printed on the power ring. Waaay before its time!
1 inch tube, gloss black, optics 100% as new, tight. This was a factory demo, and it has minor marks where the rings were mounted, which will likely be covered up with your rings.
Never hunted with or mounted on a rifle. Sitting in my scope drawer for 15 years. Someone needs to have fun with this on a good varmint rifle.
These features on current scopes put it into $1K class.
5 day inspection allowed.