So here is our oldest tractor in my dad's collection. It was my grandpa's, it is a 1928 John Deere model GP. Stands for general purpose, originally they were going to call it the model C, since it looked a lot like the D's. But they were trying to Market it as more of an everybody's tractor so they called it the GP general purpose. There's no electronics on this tractor whatsoever it's a hand crank by the big counterweight flywheel on the left hand side has two petcocks to relieve the compression so it's easier to Wing over. About three revolutions through the compression strokes and this one fires right up every time. Here are a couple pictures of it