I was definitely thinking mission/arts and crafts too, D&B. I just didn't want to believe it. It's throwing me off with all the repairs, square nails and the crude varnish. But, if some guy in his barn was making this 100 years ago, that would explain the lack of experience. I think I'm just going to tell myself that this was made around 1890. Those square nails are the only reason. D&B is the furniture man though, and knows more than me. I'll take it with me in November, it's only 5 bucks and maybe they have some ideas, too.
Also, some of the wedges are very flat and flush while some poke out a bit. I think some of those have been repaired, too. And the two L brackets are holding the top on because it was completely broken off, not at a joint. So that'd be fun to try to repair. Probaby just wood glue but it looks like pieces of wood came off when it broke, it'd look funny unless I filled it in. Just not that ambitious with this little thing yet.
Oh, and the red clay stuff seems a lot like sand mixed with something. It's like...plastered into the joints (to make them stronger?) and not just enviornmental residue. It's very hardened, I'm curious about it. Is there red sand plaster? One of the pics I posted shows it under the chair.
Also, the wood on the back looks kind of...rippled? I don't know if these are cut marks or saw marks or what. I'll try to get a good pic. The spacing between the ripples is irregular, so it may just be the wood. Thanks for all the input! I'm fairly heartbroken this thing isn't from the 1700's, but I will just look at it as a learning tool, like so many other things I have. At least I didn't spend a fortune.