The pipe seems to came from the very beginning of the Lane era (early 1960s) and very probably made of family period briar: the stamping is already in line with Lane standards, but such the dublin shape and such kind of briar are more typical for earlier, Reuben Charatan's period. Nice and collectable sample from old good English pipe making times!
The pipe markings are "(L)", "CHARATAN'S MAKE \ LONDON. ENGLAND \ SPECIAL", "260X". The length is 14.2 cm (5.59"), bowl's height is 4.8 cm (1.89"). External diameter of the bowl is 3.6 cm (1.42"), internal diameter is 2.1 cm (0.83"). The depth is 4.0 cm (1.57") and this pipe weights 36 gr. Briar, acrylic stem (very probably a replacement one, but it's very well and stylish made), no filter.