Okay, so I Googled the model number and one of the things that popped up was a part number for a belt for a "Noma/AMF/Dynamark walk behind" mower. Further inquiries(adding Noma to the model number) lead me to a 24" mower, so I don't think that's it.
So, what is it that you need? Mower parts? Engine parts? Or just knowledge? I can certainly understand the last one. I just spent almost two months finding a model and year of manufacture on a motor I need no parts for, so I understand.