The Calypso Jr is an older model. FRN scales and VG-10 blade steel, there were a couple of runs with a laminated ZDP-189/420 J2 blade. It was a Seki city made knife. The Cally III is an updated version, made in Golden with G10 scales and S30V steel. A sprint run was made with carbon fiber scales and ZDP steel. The Cally III has a slightly different blade shape (no swedge on the spine) and a wire clip.
Bruceter