Hmmm, they were popular during the 40's, 50' and 60's and went out of business in about 1990. They actually used pretty decent briar and were noted for their large sized pipes. I have a couple but have not smoked them in years.
Some would consider them on a par with Dr. Grabow from the same era, which is probably fair.
http://pipedia.org/wiki/Custom-Bilt