Found new owner
There was probably no other such creative and innovative manufacturer offering that variety of shapes and grades. For example, while at the end of the XIX century GBD catalogues offered more than 1500 models, in the second half of XX century a shape number 9889 didn't surprise nobody. In the 1950th GBD celebrated its century anniversary and released the "GBD Century" series. These pipes were very successful, thus the company decided to repeat this experience and start the "New Century" series around the 1980th.
The pipe markings are "GBD \ NEW CENTURY", "MADE IN LONDON \ ENGLAND", "9438". The length is 12.7 cm, bowl's hight is 4.0 cm. External and internal diameters of the bowl are 4.2 cm and 1.8 cm. The depth is 3.0 cm and this pipe weights 52 gr. Briar, vulcanite stem, no filter. The button is a little bit slanted. The chamber has a few scratches from a cleaning tool.