Hoop back chairs?

[rs9999]

Not sure about these other than they are hoop back chairs. No stamps or marking. There are 4 total that I have. Would anyone be able to estiamte value or give anymore infor about them? I've attached some photos as well! Thanks in advance!

 

[Blackfoot58]

I remember the price in the late 1970s. Similar pieces, made of oak, and still solid (not wobbly) went around $40 each at farm sales. I don’t know what today’s market is like.