Medieval crosses are interesting artifacts from a millennium ago. They can be found in bronze or iron and some are hinged. Shown below is a medieval cross which I purchased in December, 2007 from a fossil shop in the old part of Jbeil, Lebanon. Considering where I purchased it, next to the archaeological site where a Crusader's Castle resides, along with its European origin, it is reasonable to believe that this cross could have been worn by a crusader and brought with him as he ventured down into the Levant. Perhaps this was worn by a member of the Knight's Templar.
The 5 circles found on the obverse symbolize the 5 wounds of Christ. The patina of the dirt that is caked on the iron is characteristic of the soil in that region, validating its authenticity.