Well, its not a designer piece but it is in the Mid Century Modern style !! Probably mid 50`s through 1960 !! The back is self explanatory,, the mfrs style number is 1472,,it is walnut with a black base and trim, and was checked before shipping by Inspector # 2 !!
Knowing who made this one from the many mfrs operating at that time is almost impossible without a name on it !! It is a mass produced piece !!
Value would depend on its condition !! I would check Ebay and see what similar size and style are selling for !! Not the asking prices but actual selling price !! You can look in the left column for completed sales !!