At first glance this glass insert side table looked like a Conant Ball or Brown Saltman table but it is not marked anywhere aside from "#184" stamped on the bottom. Does anyone recognize this table? Designer? Manufacturer?
The glass slide into a recessed channel. The owel legs are "permanent" and not the screw in kind. 
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It looks like someone "borrowed" some design cues from Heywood Wakefield and Jens Risom to avoid paying design royalties. It is still a useful vintage find that is if you like it just as it is.
The style of your table more closely resembles a Heywood Wakefield design but most HW examples will have a burn mark/logo underneath the table.
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