The spline crosscut sled is directly from one of Doug’s books that I bought recently. The thin piece of walnut on the jig is a story stick used to gauge where the stop block is placed.
Almost forgot, the lid strap is made from scrap leather and the inside of the box is deerskin. I found a couple of deerskins at a yard sale recently for really cheap and thought they would be good for box interiors. I used spray glue to attach it to a thin piece of cardboard and then fit it to the box.
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