The animal inlay looks more whimsical to me than a game animal that might be hunted with an 06 length action. More so with the additional pictures, a different hand seems to have added the dates, initials and the trigger guard engraving. The gold line work on the trigger guard does not seem to be executed with the same touch as the animal inlay.

The floor plate has a bit of German influenced engraving feel to me. It may have been available for the build and not commissioned for the build. My suspicion would be that whoever engraved the floor plate, would probably have used a similar style to do the initials and date. Id guess, to some extent or another, the rifle was done, and then was reworked for giving as a gift. Just guessing for fun is all.