Is this a Nelson side table base by Herman Miller?  

I just purchased a aluminum base side table. The base appears to be identical to the the Nelson side table base by Herman Miller. The height is 16" and, although it does not currently have the adjustable glides, the base is threaded for them. I can see no marks or labels. My question - is this a Nelson side table base by Herman Miller? It clearly has some age and the top may be a replacement. Unlike many of the other Herman Miller designer furniture pieces, when I search the internet, I do not find copies or "knock offs" for this table base. If anyone can assist, I would be most greatful.

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