Wayne, you're most welcome. Thank you for sharing your gun pictures as well, it's really quite impressive. From my reading earlier, these guns used blocks of numbers and the 16,xxx serial number range were some of the earliest hammerless guns.
A good representation of how LC Smith actions evolved from the original design. The hammergun is from 1901 but is representative of all the later flat-bottomed guns going forward.
When the Hunter brothers were done with it, you almost wouldn't recognise Alexander T. Brown's original design.
But in 1890 they still mostly resembled the original configuration.