[ While Watson steps away, Sherlock tries to get in a position to see more from as close as he can get. He wants to know how this works even if there is a huge gap in his knowledge of the technology. ]

I wonder if the design of my pistol can be found in this machine as well or if it would be too outdated and better found in a history book.

[ Although, perhaps it would be better for him to learn to shoot something more contemporary. ]