It's a Goodman's Levit Yatter table! We even have all kinds of accessories: pocket shims to play 3 cushion, old leather pill bottle, cue rack, ball rack, and a table game (don't know what it's called or how to explain it) all of which are found in the catalogue for goodman Leavitt yatter
After a lot of research and then finding the stamp on the cue rack, ball rack, and on the slate we figured it out after we brought it home. It looks as though it's dating back to the 1800s.
COOL! You may have found a nice lil gem. Too bad that table can't tell you some stories, bet there would be some good ones.....