I was given a value of this knife to be in the $800.00 range. I want $695.00 plus $15.00 shipping. Payment must be made with USPS MO Only. I was also told that the Northfield marking of "UN-X-LD" was started in 1879 and put on their Premium Knifes. I have been given an update by a Vintage Knife collector. Here is what he thinks and I am posting a document that he sent me. "This excerpt is from Goins’ Encyclopedia. The way I read is it dates to 1876 to 1884 and was contracted out to another company as Northfield themselves only manufactured pocket knives."