Crane used for moving gun barrels at
the U.S. Naval Gun Factory, Washington Navy Yard, Washington D.C.,
(I'm sure this had some part in the USN 14" RR guns used in France in WWI)
Salvage Squad episode on finding and restoring British 1937 factory steam crane. Somebody took it apart, then left it outside for twenty years. They had to find all the parts in order to restore it to working order.