I can't vouch for the quality, but they're certainly reasonable in the $30-40 range for an 18x24 & 12x16 (comparing to Hurrell prints in general). It appears that the same prints are available on AllPosters.com, Art.com, and Amazon.com (via Art.com) which is the cheapest at $29.99.
Here's a few of my favorites - more appear at the above Web sites, go check em' out.
1937 - Hmm . . . Favorite?
The Earl of Chicago - 1940
The Earl of Chicago - 1940 - Now if only I had a dorm room, this would be the one