Ring revolver: This is the truly secret weapon. The magazine on top can be loaded with 7 bullets. ... this one was made in germany and the band is engraved with herringbone borders that say “femme fatale” at the bottom of the ring. guess it was a ladies ring from around the early-to-mid-19th century. mounted on top is a seven-shot cylinder with a fold-down blued trigger and outer spring band. it was on auction and expected to fetch between $2,500 and $4,500 a few years ago.