Hi ramblinrose56......welcome to TFF.
Prior to the Federal Gun Control Act of 1968, guns were not required
to have serial numbers.....and many inexpensive guns were manufactured without serial numbers. Most manufacturers did
assign serial numbers to their more expensive firearms, and if a gun did have a serial number, it was illegal to remove it.
Sooooo.....even if your revolver was made before 1968, the removal of the serial number makes it illegal to own.
What I would do is to call the BATF&E (Bureau of Alcohol Tax, Firearms, & Explosives.....look in the Government pages of your phone book), explain the situation, and ask their advice.
BTW.....I'd suggest that you
make the call.....they don't expect women to know much about guns, so they'll probably very patient in explaining what you should do.
Contrary to much popular opinion, any time I've had contact with BATF&E, they've been very helpful.