Small Engines (Lawn Mowers, etc.): snapper lawn mowers

Question
rear mounted motor it is old 1984 I think. I can't find the model # it has 33" deck 12.5 engine on it. I think the engine has been changed once.

Answer
Are you looking for the Snapper mower model or the engine model?

Snapper model number location URL:
http://www.snapper.com/us/en/support/manuals

Briggs engine model number location URL:
https://www.briggsandstratton.com/us/en/support/faqs/how-do-i-identify-a-briggs-and-stratton-engine

Let me know if the URLs help?
Eric