Thanks Don.
The pages in mine are the same...well sort of.

The 38SH page 19 I dated as the youngest gun in the catalog. Mine clearly has the 3rd model, 1890-1898.
I did have it down as early 1890s due to the 38SH.
The cover of mine is brown as it looks in the picture. Is it possible its the same catalog updated a few years later than yours.