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In Yukon, OK, just outside of OKC there is a small camera shop called Baker Photo and someone brought in a bunch of glass plates like these but in much better condition, while I was purchasing my 24mm Nikkor, we spent probably hours looking at them.
I can say one thing about OP's plates there are no steamships in any of these photos nor traditional oil-powered ships so these glass plates are at least pre-1900. None of the Yukon plates had automobiles or any of the other products of the Gilded Age so we seem to think those are pre-1880 or around 1880.
One clue to OP's images is the warehouse with "RINE RAILWAYS" on the roof, that is a place that manufactures patent slips, or marine railways, that extend from the shore into a dock for ship unloading.
If I had to guess where these were shot, just by looking at the terrain and buildings these were probably done in the Pacific Northwest, some time between 1880 and 1910, despite your camera being supposedly from 1899. A lot of those plate cams from that period have spotty history or are hard to track down. I have a 5x7 I acquired years ago that apparently was a no-name brand Kodak bought while they were building their photo empire and sold their cameras as DIY kits you assembled yourself.
