Hi everyone. This was my dads telescope, he never told me anything about it. I cant find any markings except a polaris cap and so far haven't been able to find any paperwork on it. It's quite huge, see the paint can to the left for reference, its gotta be 6-8ft long, maybe 7-9" in diameter. Everyone on the telescope reddit said post here and theres no serial number because its a prototype? I have found pictures from around the mid 90's of it being loaded into a moving truck. My dad was also in a newspaper article in 2007 with it saying it was 600lbs, I'm assuming that's the base? Which does roll. Anyway, just curious if anyone can help me identify this or point me in the right direction of 1. how to make sure it works (I don't know anything about astronomy, assuming lenses/mirrors need to be checked, no idea how to turn it on, etc) and 2. where and how to sell it/find a buyer for it if it is in good shape, which I think it would be, he took care of stuff. Thanks!
heres an imgur link: https://imgur.com/a/w2uEBKc