Drop Leaf dining room table 4 chairs

I'm very familiar with furniture designs and manufactures as i have alot of art deco furniture but this table has me stumped.I've researched your articles on Jefferson table slides and tried everywhere to find this moon shape base with this kind of finish without any luck.I bought this off of craigslist and someone tore the tags off of the chairs and went to alot of trouble grinding what looks like a manufactures mark off the inside of this table.The wood is extremely hard and the table looks heavy but is light.It had nice custom made felt covers on it that were expensive and looked fairly old.The chairs look like they have the original material on them.Any help with this would be appreciated.Thanks Jeff

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