Thanks for your replies! I did a quick Google search and the closest that I came up with was a Snowbird 1961 model 224. If I read the serial number on mine correctly, I have a 0
203-0532. I'm assuming the 203 is what the model I have. I'll have to double check tomorrow and do some more Google searching.
BTW: Still runs great! Did a thorough clean out on the motor (last summer), and the engine is still going strong! Shows signs of rust so I might have to take it apart for a good ol' paint job this summer!
Below is model 224. Picture came from here: http://majorpowerequip.com/7.html