In my opinion, value would depend mostly on correctness/originality and how high a condition overall and possibly where in time the Serial Number puts it, and whether it is to be regarded as a Martial Arm or a Commercial one...with the WRH provenance probably not counting for much since WRH is not like say, 'Elvis' or General Patton or Teddy Rosevelt or other as-it-were 'positively' and energetically regarded figures of the past.