Found new owner
Despite such a vague origin the pipe is lightweight, elegant and it didn't require too much effort to reniew it. So our general score is 5 points.
The marking is "Grosvenor London Made". The pipe is 14.0 cm long, 3.0 cm tall and weights 24 gr. The bowl's external diameter is 3.5 cm, inner - 1.9 cm, inner depth - 2.4 cm. Briar, vulcanite stem, no filter.