From what I can see you made a great catch, and at a very decent price. There's nothing like an unmessed with piece from a Vet's family.

As with any antiquity, the patina counts for a lot. Be careful not to "love it to death". There are a lot of opinions on how best to maintain daggers. Personally, I like to take care of the blade by wiping it with a soft cloth and leave the rest as is, unless there is a major corrosive present. This forum and WAF are good sources for information. Take your time and read through them. Also, Wittmans books on dress daggers are a great investment.

Conratulations on what looks like a very fine 2nd model Luft.

John