[b.goforth]

eureka,
without knowing what the exact markings and where they are found i cannot even begin to tell you what model you have. the black hard rubber owls head grips are usually found on prewwII models.

look on the top of the barrel (or top strap) for the company name and or model name. top break models manufactured before 1903 will also have patent dates marked on the top of the barrel. other places to look for patent date markings are the left side of the barrel and the bottom of the butt strap. the main serial number location (until 1955) is on the left side of the grip strap under the grip panel (grips must be removed to see) this is the location where letter codes will be found.

it is also helpful the know the barrel length. is it a solid frame or top break model? what type of hammer spring does it have flat leaf or coil?
bill