I have discuss the 9x57 Mauser DR, SN 282785 with another Collath collector before and we came in the end to the conclusion this must have been original a 5 digit SN someone change http://www.hermann-historica.de/auktion/...;db=kat63_s.txt

its now for sale again in the next Springers auction nicely restored with a ugly scope
http://auctions.springer-vienna.com/de/d...;currentpos=110