Here are a couple record covers I found. The illustration work is great. They are signed “MAAS” but I wasn’t able to identify this designer.
I dug some information from the web pointing at a designer named George Maas from a book cover I saw. I also found another record cover designed by George Mass but it’s a different style. Here are some links:
1. Check this book covers on Flickr » by The Crossett Library Bennington College
2. This record cover » on Flickr with the same signature with reference to George Maas. Mine doesn’t say a thing on the back.
3. Another record cover »
4. This Bio » on AskArt.com
5. This article on Billboard Magazine ». Bottom right of page 33.
6. This book » probably has some info on him.
Is this him? You be the judge. Might not be him but they are still cool.
Designer: Maas | Year: around 1950’s | Photos: Javier García