NYboy, there most likely was tags / labels on the chassis AND the engine when the tractor vvas nevv; hopefully they vvill still be there... Take along your camera, a good flash light and materials to clean dirt, grease, and rust off the labels and photograph them... Caution ! ! Do the cleaning carefully, (I've been knovvn to obliterate the pertinent and needed data from an old deteriorated label..) In case it's not self-evident, the flash light is to help illuminate the label so the camera vvill pick up the data better..
Sam