Found new owner
An extremely rare and very interesting Charatan's Make pipe of their best period ("Lane era"), i.e. late 1960s - early 1970s, when the glory of Charatan's eclipsed all competitors, including Dunhill. At these times the twin bore stems were quite popular as their buttons were better resistant to teeth pressure. But anyway, most customers preferred more standard widely opened buttons, therefore every twin bore pipe is a rarity today. And the twin bore Charatan's pipe is ultimately rare - we haven't seen anything similar over many years.
The pipe markings are "CHARATAN'S MAKE \ LONDON. ENGLAND \ SPECIAL", "4". The length is 14.8 cm (5.83"), bowl's height is 5.0 cm (1.97"). External dimensions of the bowl are 4.0 x 4.5 cm (1.57" x 1.77"), internal diameter is 2.1 cm (0.83"). The depth is 4.0 cm (1.57") and this pipe weights 56 gr. Briar, vulcanite stem, no filter. The right side of the rim and right side of the bowl have some darkening caused by inaccurate use of matches or a lighter. There is a very small spacing (less than 0,5 mm) between the end of shank and the stem, but the stems sits reliably. The upper button side looks a bit overbuffed.