Bucket Seat ID

[herb101]

Any idea of what the proper term for this seat design is? Are these a fairly common design? These were in my 71 Blazer and I'm pulling them in favor of a seat of high backs of unknown origin that are in much better shape. The second pair of pics is the center console and the upholstery matches the rear seat as do the design of the back to base attachment arms, so I think it's all stock stuff.

Are these worth hanging on to? Are they worth anything for selling?

Thanks,
Herb