That's an interesting model for sure, and extremely scarce. Rick Nahas and I discussed this gun at an annual SWCA meeting back in 2001, and had the opportunity to talk with the collector that owns it (this is how this model became included in the SCSW). My recollection is that there were only ~10 or so made, as an export model to Europe somewhere, to test the feasibility of this model being offered.
This pic isn't great, but that model is a M10-10 and it was chambered in 32 Mag and had a 4" full underlugged barrel, ala the M586 style. Cool revolver, one that I'd love to have in my collection if one ever surfaces.
Made in 1991, sorry for the bad pic, I should have taken better shots of this treasure.