Angle square on a 24-inch level with handwritten callouts explai…

A Stanley aluminum rafter/angle square clamped to a 24-inch level on a wood table, annotated with callouts reading "this side against diff bolts," "the measuremnt is 4 degrees" and "the bubble is level when I took the measurement" — a how-to on measuring pinion angle. A plate of ash sits behind the tools.

AI caption August 2005 · Photo 53 of 122