Check the listing for details. WW2 Canadian Folding Knife With Marlin Spike. Condition: Used. Listed at 120.26 USD. The WW2 Canadian Folding Knife with Marlin Spike is a rare and historically significant tool that dates back to World War II. The robust folding knife features a durable blade capable of tackling various cutting tasks, while the integrated marlin spike is designed for rope and knot work, essential for sailors and soldiers handling rigging and other cordage.