These are Extremely rare issues by Benchmade. The 670-701 Damascus blade was codesigned my myself with Benchmade as was the 3550 Sniper Auto. Only 100 of the 670's were produced, 5 going to Three Little Indinans Custom Knives, while only 40 of the 3550's were produced in the Sniper Version. Each of the 40 knives were produced exclusively for Three Little Indians Custom Knives as well. The partially serrated stainless blade on the 3550 is also no longer availble thru Benchmade. It has been discontinued.
A Damascus bladed version of the 3550 is in the works as well without the Marine Corps Logo and Text.