I said here, “This elegantly styled clarinet was very clearly made by Pruefer. The owner told me that this plays excellently. Compare with the Pruefer Festival.” But that is very false, based on the information below.
[Update Apr2014: This information from Alexandra:
The Deepwood clarinet which is pictured on your website was manufactured by my father, Stuart R. Williams and his partner, Vernon D. Peirce, in Park Ridge, Illinois. I possess 2 Deepwood clarinets, one is mine and the other one was my father's. If you would like more information about the Deepwood company, please let me know. I would like to know where you obtained the Deepwood that is pictured.