I found this little gem at the flea market a few weeks back and in trying to research it, came up with very little. I was quite surprised..it’s not exactly high end, so I figured it was mass produced…but haven’t found a peep online or in my books. Manufacturer Jonken in Maspeth, New York.   US Patent # 2852221. The leg was supposedly patented in September 1958 by someone named Steiner.   The class is 248/188. That’s about all I could find.
The underside of the top is MDF and the glossy top is plastic or resin with a faux Mother of Pearl look. Oh well. It may remain a mystery, but my $15 bargain is very happy in its new home.