There were never a lot of them in the first place. Mannlicher has always had a high resale price and at the turn of the century they were popular because of their trim demensions, ground breaking new cartridges, and nearly flawless workmanship. My advice is to do some searches for Mannlicher on Gunbroker or Auctionarms and see what comparable rifles are priced at. I do regularly and old Mannlichers with classic European lines from turn of the century up until WWII command high values. They really are works of art in the gun making trade.