Hi There,
Is this a joke?
Look. S&W made many different model "top breaks" in different calibers.
All of them had their own separate serial number sequence. So, just a serial
number doesn't provide a way to distinguish what you have.
It is best to post pictures of the revolver and give some particulars as to caliber,
type of action (single or double action), etc. Then we can identify it for you.
Cheers!
Webb