JoeR - yes, there are other Spyderco custom collaborations made in Japan: Bill Moran Featherweight FB01, Wayne Goddard C16PSBK, C16, C18, and C20, Michael Walker C37, the Jess Horn C38, Jot Singh Khalsa C40, Howard Viele C42, and the Tim Wegner C48 and C49. Hope this info helps.
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Dexter Ewing
Knife Reviews Moderator
"The keystroke is mightier than the sword"