Found new owner
A moderately smoked and well preserved canadian pipe from the Hardcastle's family period (before the complete acquisition by Dunhill in the 1946). However Dunhill is already invisibly present as the major shareholder (49% of stocks), but doesn't influence technical and commercial issues of the company. The pipe was made most likely before the WWII.
The pipe markings are "ROYAL CROWN \ WINDSOR", "MADE IN LONDON \ ENGLAND". The length is 16.6 cm (6.53"), bowl's hight is 4.8 cm (1.89"). External and internal diameters of the bowl are 3.5 cm (1.38") and 1.8 cm (0.7"). The depth is 4.2 cm (1.65") and this pipe weights 29 gr. Briar, vulcanite stem, no filter. The chamber shows a moderate wear with just a little roughness.