Does anyone remember this? I had one when I was a kid (late 1960's- early 70's). You could load an entire roll of cents - quarters into the tube and pull a coin out one at a time and look at it under the lighted lens with a plastic slider bar. It would also allow you to flip the coin over to see the other side. It would then dump it out the bottom. Not very gentle, but it worked.
I found this picture on eBay......
Here is the eBay link with more pictures: