Who is Captain Pogossian (Sarkis Pogossian) from Meetings with Remarkable Men and what is their importance?

Captain Pogossian becomes a good friend of Gurdjieff's when they meet in Echmiadzin while Gurdjieff delivers a bundle of linen from Pogossian's parents. They discover a mutual curiosity about spirituality and end up working together on the railroad. The two come across ancient Armenian texts and decide to study ancient ruins near Alexandropol. They then set out to find the remains of an esoteric school in northern Iraq. Along the way they make a copy of a map of ancient Egypt. While traveling by ship to Egypt, Pogossian works in the engine room and becomes very interested in steamships. He stays with the ship while Gurdjieff goes on into Egypt. Pogossian later becomes a very rich man who owns several steamships.