Onya Warren, that's a nice find for a tenner....
What was the film camera it was attached to?
I had a 50mm series E on my first ever camera, a Nikon FG20 bought in 1986.
The series E's were the budget lenses of their time, and the 70-150 zoom was a well regarded lens by a few of the big pros of the time.
Love how you can use older Nikon lenses on the new cameras (bite on that you Canon users....

) I've got a D700, and have manual 500mm F4 and 800mm F5.6 tele lenses for birding. They still work fine. OK, I bin lots by not having AF, but there's the beauty of digital - no film....!!!
The manual lenses can go cheap if you are in the right place at the right time (as you were!!), though try finding a 6mm F2.8 Fisheye, 300mm F2.0, or 13mm F5.6....they all still go for north of $15K
And they'd still be usable today....
Cheers
John