The Gold Chain is included, which weighs approx. an ounce and is approx. 22 - 24" long.  Set in a custom fittled Bezel with a mariner traditional bail.
The provenance is as good as it gets, with both the Fisher Flip tag and Original COA (85A-197545) weighing 23.2gm (for just the coin). Orgin LT1972, discovered in 1972 it appears and is certified in 1985. Probably worn by Mel many times throughout the decades.
Comes in an Original ATOCHA 1622 Blue Velvet (Mel Fisher) box (also showing it's origins from the Fisher's).
A very special piece meant for a prized ATOCHA Collector!!!