It's an AMF commercial model; unsure of the actual model name or vintage. I would guesstimate '40's or '50's; similar in design to a Brunswick Sport King or Anniversary. I had threaded inserts installed for the casting and skirt mounts and modified the castings and side rails (at side pockets) to accept Gold Crown drop pockets; Artemis rubber with subrails extended to accommodate and 4" sides, 4.875" sides. The shelves are shallow so it plays tight but fair. As Kerry pointed out, I built a custom light to match.
Did you mean to say 4" corners and 4.875 sides? If so, that's a very tight table, no?
My understanding is that Gold Crowns came with 4 7/8" corners and 5 5/8" sides. Yours are nearly an inch tighter!