Found new owner
The Dunhill Tanshell series is a child of stormy 1950-60s. Due to a difficult political situation in Algeria supply of Algerian briar was temporally suspended. The situation was used by Dunhill as a good chance to try Sardinian briar and to use own patented deep sandblast technique. The material is significantly much denser, therefore the finish turned out very uncommon and interesting. As an example we can offer this billiard of the 1966 year of birth for your attention.
The pipe markings (slightly worn) are "142 F/T", "DUNHILL \ TANSHELL", "MADE IN \ ENGLAND 6", "(4) T". The length is 14.5 cm (5.7"), bowl's height is 4.7 cm (1.85"). External diameter of the bowl is 3.0 cm (1.18"), internal diameter is 2.0 cm (0.79"). The depth is 4.0 cm (1.57") and this pipe weights 28 gr. Briar, vulcanite stem, no filter. The chamber has been protected with a break-in coat. The stem is a nicely made replica one. We can't claim it repeats an original stem ideally and is ideally ajusted to the pipe shape, but it sits reliably, the air channel is well visible thus there's everything fine from the engineering side.