This is a "copy" of a Wheel Horse "Instruction Manual and Parts List for the RJ-58 Tractors. This Manual measures approximately 7 1/4" x 5 1/2". This was copied from the Original. I sold the Original on Market place 3 weeks ago. A little research said it might have been a Salesman Sample. Any bodies guess. Thanks for looking. I also have other Wheel Horse Manuals. Reprinted on a Laser Printer, not a cheap copy machine. You decide if this is what you want. Buyer will also receive 2 FREE Wheel Horse Decals as pictured.