I also think it looks like a WW base - with that dished out spot on the top, it looks like it would fit a rotary machine. I have some WW drawers that have the same engraving as your center drawer too.
My worst mistakes have come from getting excited and hitting "buy it now" a bit too quick, and realizing I didn't read some of the details quite as close as I should have.
My husband had one of these learning experiences - he was dealing with a very dirty 127 with great decals. Until he got the idea to put it in the sink to clean off all the grime. He was amazed at how black the water ended up. I was amazed that he didn't notice he was washing off the finish and decals!