What kind of double rifle did I inherit?

Dear Cal:

Trying to find out who made 450 express. Got from grandpa. After taking off the barrel there looks like and egg with crown on top has p pv & fig inside design.

Gary W. USA

Gary:

If you send photos of the writing and proof marks I can help a bit and can date the rifle to an approximate time and location. From the information given here, I can’t be of much help.

Good shooting,

Cal