Found new owner
The pipe is from the T. Cristiano's old stock. It was shaped and drilled approximately in the 1980s, but finished nowadays. Tomas Cristiano was the Italian by origin, his family emigrated to the USA in 1968 and several generations of Cristiano are involved into production and marketing of wonderful briar pipes. Thomas began at the S.M. Frank & Company factory - one of the "briar giants" of America, very quickly he made outstanding career and started own production of the brands T. Cristiano and Calabresi. Thomas's pipes are in Italian way graceful and expressive and in American way well balanced in terms of a price / quality ratio.
The pipe has no markings. The length is 14.5 cm (5.71"), bowl's height is 5.4 cm (2.13"). External diameter of the bowl is 4.5 cm (1.77"), internal diameter is 2.0 cm (0.79"). The depth is 4.0 cm (1.57") and this pipe weights 71 gr. Briar, acrylic stem, no filter. The air hole is not ideally centered in the chamber but it shouldn't be a big problem taking into account such thiсk walls.