Hard Case Goes Widescreen

I love this cover to next September's Hard Case Crime release, Losers Live Longer, by Russell Atwood. HHC honcho Charles Ardai writes in his most recent e-mail newsletter:

The book will be printed and bound the ordinary way, but in order for you to read the cover properly you'll need to hold the book sideways. (There are a few examples of sideways covers back in the pulp days, and we thought it would be fun to do one in our line.)

I know that the Regency Books edition of Jim Thompson's The Grifters was printed sideways, but can anyone remember any others?