I found this blue 70s era 10 speed with the branding Hatcher cycles. The headbadge sticker is a bit worn down. It is selling for $50 at the Fort Collins bike co op. It does have an extremely stuck seat post.
That ten speed is surely low end Japanese or Taiwanese. Looks very much like countless other bikes sold under various brand names. If the rims are straight and dent free, it's not worth more than $50. These make for decent singlespeed/fixie projects. The cottered cranks say the frame is just mild carbon steel.