ClipArt ETC
"Gaff. B, boom; CC, cheeks; G, gaff; M, mast; P, peak; T, throat or jaw. Nautical, a spar used to extend the upper edge of fore-and-aft sails which are not set on stays, as the mainsail of a sloop or spanker of a ship." -Whitney, 1911

Gaff Rig

"Gaff. B, boom; CC, cheeks; G, gaff; M, mast; P, peak; T, throat or jaw. Nautical, a spar used to extend…

"Railway, with single traveler in detail. Nautical, iron jackstays bolted on the under side of standing gaffs which carry fore-and-aft sails, with or without booms. Small grooved iron shapes called "travelers" are sewed to the head of the sail, and slide along the gaff by means of a whip or outhaul." -Whitney, 1911

Railway

"Railway, with single traveler in detail. Nautical, iron jackstays bolted on the under side of standing…