That's right. D.A . Ruana. Not R.H. Ruana. A new member here asked in a PM about a "Ruana #2 with a five inch blade, full stag handle with brass guard and end cap." This knife is signed D A Ruana". I did not know the answer so I called Mike Hangas, Vic Hangas' son and Rudy's grandson, at the Ruana shop in Bonner, Montana. I will visit them in Bonner, around the first week in April. Mike is a very nice fellow, as all are at the Ruana shop. The three man staff, Vic Hnagas (Rudy's son-in-law) and his two sons Mike and Mark are a busy team.
D.A.Ruana is a cousin (also Rudy's grandson) who worked at the Ruana shop in Bonner for about 1-1/2 years from 1988 to 1989. Since then he made knives in Mizzoula, Montana until due to trademark infringement laws he no longer could make knives under the Ruana name. The Ruana name is protected by Montana and national trademark laws since it is registered. The leather sheath logo is also different from other Ruana knives. The logo on the D.A . Ruana sheath appears to be a rams head with crossed knives below it. Above and below the logo it says, Ruana Bros. Regards,
Rhett Stidham

