Thanks. That's the key that unlocks the door. These guns were for the distributor Ellett Brothers, LLC, in Chapin, South Carolina. Sku (product code) 150674. A sku that begins with "15" is almost always a limited run for one particular distributor, and not something for national distribution. I think they were originally offered in the 2008 - 2009 time frame.
If I had to guess I'd say fewer than 1,000 were made. If there were more, we would be seeing them more often.
They are especially interesting to me because they are what aficionados call "Pintos". Blue/silver contrasting frame, barrel, and cylinder. Doubly cool. Aluminum alloy "Airweight" frame, stainless steel barrel and cylinder. Some guys specialize in collecting Pinto guns. Pinto guns are a tradition that goes way, way, back in S&W (and Colt) history. Of course, back in the day the silver was nickel.
Here's a link to the Ellett Bros catalog....
Ellett Brothers Digital Catalog - Page 68