Chief's right, and the SCSW also lists some special-production 469's for RSR but I can't tell from the description whether they were nickel guns or not. They're listed in two runs, with RSR prefixes, directly below the listing for the nickel model that must be the Ashland gun.
A couple of members here have picked up the Ashland guns in the last year or so, according to posts. And, a really nice LNIB example sold recently on GunBroker for the mid-$700's. The only other nickel one listed was asking $475 for the gun and two mags, but didn't sell I don't think.
Look forward to seeing your pictures.