Thanks Kevin, yes it's walnut.for anyone who never held a #13-12 in their hand,It feels like the most lethal knife I've handled.It's so pointy and sharp I believe you could jam it through a car door.
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Bob T RKS #5138 RKCC #CM-015
The model 13 is one of my favorites. Here is a 13-12 and a 13-12 miniature. Both have old Westinghouse micarta handles and roughback sheaths. The miniature has a stainless steel blade with Randall stamp and a separate S.