Found new owner
Invicta started as a pipe repair service ("Medway Briars"). The careful choice of material, successful market policy and the carvers, experienced with Dunhill and Charatan, made the company one of the live legends of British briar. Invicta pipes is a product of cooperation of three masters - Colin Fromm (Charatan's, Dunhill), Bill Ashton-Taylor (Dunhill, Ashton) and Les Woods (Dunhill, Ashton, Ferndown). A very interesting sample of a large form pipe from Invicta!
The pipe markings are "INVICTA \ ENGLAND". The length is 16.0 cm (6.3"), bowl's height is 5.6 cm (2.2"). External diameter of the bowl is 4.7 cm (1.85"), internal diameter is 2.7 cm (1.06"). The depth is 4.0 cm (1.57") and this pipe weights 77 gr. Briar, vulcanite stem (slightly corrected in the button area - you may see the track under a bright light), no filter. The stummel had a few chips and scratches carefully and reliably patched during restoration. The air hole is not ideally positioned in the chamber but it doesn't look to be a big problem for an experienced smoker.