This catalog is listed on the Rumph.com website as possibly being one of a kind. Well, since I have one, that isn't so, but I expect they ARE very rare. My copy unfortunately does not have a cover. From the Rumph.com page I can see that the front cover is the same as the Magic Age of Rumph book, so I used a modified version of that here. However there is an inside cover that can be seen there. I will transcribe what it says. If there was something on the back interior cover, I don't have it.
Hand-Crafted High Fired Stoneware by