GBD Pre Historic Estate Pipe, it is marked: GBD in an oval, Pre Historic, London England and the number 864. The bit has a GBD Logo on it. It measures about 5 ½ inches long, the bowl height is about 1 ¾ inches tall. This GBD pipe has been smoked, and it has a bite protector on the bit. This pipe will be a good addition to a pipe collection. Please e-mail if you have questions about this item.