Help Identifing my new to me mower

If any one can help me identify my mower I would appreciate it. Model is 46209X9C and is a 18 hp 46 inch cut. Runs pretty good and cuts well, just need to replace and or sharpen the blades. I have the operator and parts books that came with the mower but the guy I bought it from didn't know anything about it as it came with the house he bought. Would like to know more about it.
Thanks
Tom

Attached Images

• Murray data plate.jpg (111.0 KB)
• Murray engine detail.jpg (96.0 KB)
• Murray front view.jpg (104.2 KB)
• Murray rear view.jpg (75.6 KB)
• Murray side view.jpg (105.4 KB)