My dad purchased this John Deere 21" new in 1985 for $525 dollars from the local JD dealer. It has a Briggs & Stratton engine on it, and is self-propelled. I've googled the various numbers printed on the sticker, however, nothing comes back to anything that looks remotely like what I have. Does anyone know anything about this mower? It needed some work when my dad still used it, but lately, all it's needed was a new gas cap and to have the carb cleaned out. I still use it when I have a yard that I can't easily get my 36" WB into.