[imquattro]

I have a staggered wheel, magnesium deck Raup mower that I can find no info on what-so-ever.
Looks a lot like a Lawn Boy but it's got a Tecumseh 4 stroke motor on it.
Didn't have spark, cleaned the points and now we've got spark.
Kids are taking it apart just because.
Carb needs rebuilt but I can't find any info on the mower and the front plate isn't readable.
Here are some pictures:

 

[rhenning]

I would bet the deck is aluminum not magnesium but it looks like a nice old mower. Roger

 

[atomix]

Yea, certainly a cool mower! The staggered design seemed to show up a lot in the late 50s, early 60s, not sure if there's an acknowledged "first."

Engine looks a lot like an old briggs from the front, but I'd expect the coil to be on top of the cylinder. Reminds me a lot of my own "I think I bought a mag deck classic!" buy:
http://www.mytractorforum.com/showthread.php?t=253308