Ditto to what Storm said.  My first revolver was also an Italian brass frame .36 cal 1851.
I forget what all happened to it, but I recollect saying it automatically self destructed right before my very eyes.
Too bad, as it was really a good shooting pistol.  Very accurate.  
I think it was a Hawes brand.
Amazingly enough, the store where I bought it refunded my money on it.