Mystery American cabinet  

Could be.
It wouldn't surprise me to find, someday, a home woodworker's book or magazine with this piece in it, lovingly described and illustrated with how-to material list and step-by-step instructions.
"Contemporary Cabinet -- for Studio or Den -- You Can Make in One Weekend"

Exactly so
We have all seen an unending stream of period publications dedicated to home modern wood working. But since I make a habit of being wrong, I thought it couldn't hurt to throw it out there.

So . . .
the raised panel edge is shaped to act as a door pull ?

Very nice, its that sort of b...
Very nice, its that sort of bland (thats a compliment!) design that I'm liking more and more, handsome and doesn't call attention to itself. Cherry?
Should be more if it.

Or, perhaps built using a "Famous Design" DIY plan
I found a number of such DIY plans when taking care of my father's estate-- I think these plans were given out free with the purchase of tools. I remember a Russel Wright serving cart, Nelson wall unit, others...

WHC
That ad is stunning. Encouraging folks to rip off designs in an advertisement. It reminds me of the time I went to someones house to buy a large Umanoff wine rack/ display unit. The owner proudly told me how he and his buddy had carefully studied one in a store and then went home and built his. It was identical except they had used square instead of round steel stock.
SDR, No. It has those push- click thingys inside, so no grips or pulls at all.
Heath, Not sure. The color is quite orange, like a light teak, but inside it is darker and seems to be walnut. I have had other walnut pieces that have lightened and gone orange with age. A good example is Martz lamps and finials. They are orange enough that many think it is teak. But by their catalog they only used walnut. I wonder if Butternut could be it? It is also referred to as white walnut. Sorry, I am iffy on my wood IDs. And the only time I look at cherry, it is charred over in the glass studio. I wonder what effect different finishes have on color over time? And yes, I know what you mean, The strictness of the form is quite pleasing. To me it has a tiny bit of the formal elegance of Claus' magnificent recent score.

WHC
You have got to send that ad to a Russel Wright collectors group. They would flip out!

.
If the designer sanctions it (couldn't FLW plans be mail ordered at one time?) or its not done for profit or claimed as ones own design I think its ok, admirable even in some circumstances.

Private use?
Copy to your heart's content.
For sale? Wait until it's in the public domain or risk the consequences.

The ad
merely says that visitors to a Cummins tool dealer could purchase a copy of the Russel Wright (and other ?) plans -- or receive one with the purchase of a tool -- as I read it.
I'm not sure how the discussion turned to the subject of copyright infringement . . .
Building fine furniture with a Skil Saw isn't my idea of how to "do the job right, the easy way" ! But wouldn't it be fun to see one of those plans ?

Ahh
That was me misreading the ad, sorry. Sounds like Wright provided the plans to the machine company as a promotion. I imagine he was compensated whether they were for sale or as a freebie. I do think the Wright collectors would be very interested. Yeah, finding a copy of those plans would be great! Anyhoo, back to the cabinet.......