Check the frame or barrel.
1991 PX 22
No way to tell.
Turn of the century.
100-400 USD
No publicly available sn data
100-300 USD
50-500 USD depending on specifics
50-100 USD
No way to value with just the sn and no other details
100 yrs give or take a few decades
I have an eatern arms 38 cal. 5 shot revolver. serial no.95350 and trying to find out it's age.