Take a look at this video of some of the process of creating the sculpture.  See if you can pick out the early 1920's car jack, some nearly century old early wrenches, and notice what the armor is made from, antique car fender cuttings, hand trimmed and hammered to shape on the anvil a piece at a time!  There is so much history and many life stories go into every sculpture.  That is part of the reason why each piece is not replicable and very unique.