3 Cabinets - Paul Mccobbish  

Looks like Drexel. Could be...
Looks like Drexel. Could be wrong.

Country Workshop
Unless I miss my (educated) guess these cabinets are by a little known New Jersey furniture concern called Country Workshop.
Country Workshop cases are always 16" in depth and typically 29" high with this case type and leg configuration (see attached image).
You can get a little bit more history about the company from my blog article (see web link).
http://paulmccobb.blogspot.com/2011/01/country-workshop.html

Thanks!
I think you might be right, because they have the hanging shelf/cabinet above it as your ad pictured. Do you know if they signed their items?

If only Country Workshop were still around!
With prices adjusted for inflation, the six-drawer cabinets would sell for around $300. The Paul McCobb-style chairs would be 70 bucks.
Sorry, but Ikea & West Elm can't hold a candle to Country Workshop.

What's in a name?
Every Country Workshop piece that I have examined thus far was unsigned. I don't think that was really their thing.