Conservators have begun treatment of part of an iron cannon carriage from Fort Jefferson – Dry Tortugas National Park in Florida. The Fort was built in 1846, and this carriage fragment is the only piece of several cannon support structures that remained at the National Park, all others were salvaged by scrap metal dealers in the 1910s. This piece was overlooked because it was buried in the sand. The cannon carriage would have held a Parrott cannon, a rifled cannon that fired a pointed projectile.
Three. And a crane!!