Anyone here know woodworking?

Bench hook. Stop on this side is a little shorter so the saw teeth won't hit the workbench and also prove better support on the final cuts.
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Only mortice and tennon and open tennons on the project I made that for, so not quite the same as lap joints.
I'd have to look through if there are any pics of the crew or interns making their picnic benches and tables. We had them make lap joints various ways.