[Linked Image from thumbs2.imgbox.com]

Too, now I do see that it is a H. Roux underlever opener with a toplever selector between bullet & shot?

[Linked Image from thumbs2.imgbox.com]

The recess in the wood more than likely was to accommodate a hinge for the access paddle of the metal buttplate. Although I do not think it is the case here, but often during difficult times, folks would hollow out the wood under the buttplate & hide their valuables when fleeing trouble.



Serbus,

Raimey
rse