🔎 UNIDENTIFIED Any help appreciated

[Older The Better]

I’m not sure if this is the best spot but i didn’t see a ceramic forum… I’m investigating an old site and trying to get an idea just how old it is, it’s produced two coins with no date but made some time between 1860 and 1880 and a civil war Calvary button. I decided to go pick some of the ceramic to see if it might have a pattern or mark… I know these are probably a long shot but doesn’t hurt to ask… I’d love any info if anyone has any
A

B

C

D this one I’m really curious the hole is glazed so it’s intentional but why, also broken on either side so I think hole verse a notch

E Then i believe it’s called salt glaze and I think is sort of dateable