$100-$225, depending on condition.
Rossi M88: That may depend on when it was made. What is the serial number? That may help.
In the owner's manual
Maybe 100 or so
100-250 or so
Best left to a trained gunsmith
Depending on exact model and condition, $100-$165
No published sn data. You will have to call Rossi
50-200
No published sn data that I am aware of.
You will have to call Rossi to find out.
1) ensure the revolver is unloaded and safe. 2) open the cylinder - Rossi marked their revolver model number on the frame behind the cylinder crane, ie: M31 etc.
50-200