Found new owner
The pipe was most probably made in 1970s. There were many legendary pipe carvers working for W.O. Larsen and it's usually difficult to say who exactly made a specific pipe. In this case we can guess that our today's pipe was made by Jess Chonowitch, you can compare with other his pipes and agree or disagree. Regardless its creator it's a wonderful W.O. Larsen pipe and it will be both a pearl in your collection and a great and reliable smoker!
The pipe markings are "W.Ø.LARSEN \ HANDMADE \ MADE IN DENMARK". The length is 13.0 cm, bowl's hight is 5.1 cm. External and internal diameters of the bowl are 4.1 cm and 2.0 cm. The depth is 4.5 cm and this pipe weights 48 gr. Briar, vulcanite stem, no filter.