1890s - 1920s (or repro from the 1970s-1990s) oak side chair with a pressed back.

If you look under the seat you might see the holes for caning, or it might have had pressed cane, or a board seat.

Nice chair, but nothing fabulous.

Thank you! Any idea what's its worth as is or fixed up?

How much it's worth is very dependent on where you are and how you are planning to sell it. Definitely at least the $5 you spent, and it could be quite a bit more than that if you're in an area where golden oak is popular. It does have the disadvantage of being a single dining chair -- if it were part of a set it would have more value.

i wonder if it's European, rather than American. There's something about the lozenge-shaped press-carving and the shape of it that seems European to me.

That's very interesting, thanks so much for the help.