Large heavy example as used for shaping beams and planks and as shown on current PBS programing, as used for construction of Viking ships. Iron, 8 1/4" length with circular eye, hooded socket and well forged flared edge chisel bit. Professionally conserved excavated condition. Timbers and planks for ship building were split from logs, then faced with a broad axe. The adz was used for fine shaping and surfacing. In the hands of a skilled worker, a ship plank could be surfaced so closely that when overlapped and secured, very little or no caulk was needed for water tight joints. Fine example.