U.S. military issue in the 1970s, we also furnished some to Israel, and some of those IDF units came back here on the civilian market.
First generation technology - it had three Gen I tubes cascaded one-behind-the-other to provide decent light gain. Batteries might be a problem, unless the scope has been modified to accept commercial batteries.
You didn't state what the price was, but you should consider that Gen I tubes only last about 1000 hours, and there's no telling how many hours the scope has on it already.
