Found new owner
According to some sources, G. W. used to work for Charatan's (that is clearly visible on some Sims pipes) and most probobly, for Barling as well. But finally he found himself as an independent tobacconist and an owner of a little shop in Northern London, which existed till 1980. There is a pleasantly looking and moderately smoked example of a combined finish (smooth + rusticated), which is equipped with an aluminium air cooler (we didn't see so far any G. W. Sims pipes with such a detail).
The pipe markings are "G. W. Sims \ LONDON MADE". The length is 13.5 cm (5.31"), bowl's height is 4.1 cm (1.61"). External diameter of the bowl is 3.8 cm (1.5"), internal diameter is 1.9 cm (0.75"). The depth is 3.2 cm (1.26") and this pipe weights 36 gr. Briar, vulcanite stem, aluminium air cooler.