I am new to this group. This weekend the wife had me cleaning my gear closet and I dug up knives that have not seen daylight in years. I have no idea on what they are worth or what is good or junk. The Microtechs are autos and were not carried in the field. The socom is a 1/1998, The mini UDT is a 4/2000 with box and papers, the ultratech is a custom order Federal Air Marshal mine is 011. Are the older mircotechs worth more? A MOD Patches Watson knife. The others were knife we picked up overseas. Any input is appreciated.