Iron artifacts recovered from the Armstrong Site that were salvaged from wreckage and modified by 1565 shipwreck survivors. At left, there are four examples of ship’s fastener heads which have been cut from their shanks by saw or chisel. Many examples were found, and they for the most part represent debitage from tool making using a forge and tools. Some could have been meant to form hammer heads by insertion into the striking face of a wooden mallet. At right are partially intact ship’s spikes. Each displays clear evidence of using a forge to heat and then tools such as saws, hammers, chisels, anvil, and clamps to remove stock iron for use in constructing new tools.