Canvas

Canvas is a rare material.

Heavy sailcloth for rigging and repairs. Bought from trade posts.

Where from

Sometimes in an Iron Chest, Gold Chest or Treasure Hoard
Sold for Pirate Medallions by: The Magpie
Iron Chests, Gold Chests and Treasure Hoards
Bought for gold at a Sail Loft

Spent on

Supply Barque (2)
Heavy Argosy (4)
Grand Argosy (40)
Charter Ship (12)
Cutter (3)
Clipper (6)
Galecutter (5)
Phantom (4)
Plunderer (3)
Shadowrunner (4)
Quartermaster (8)
Strongwater (40)
Convoy Flagship (6)
Pathfinder (6)
Wayfarer (8)
Sovereign (6)
Admiralty (levels 2, 3, 4, 5, 6, 7, 8, 9, 10)