Eames style chairs  

mulhausre for plycraft maybe

amercan readers off this forum must know more precise or for sure

i only know them with rotating base

i saw only one link so far with your base

aphot off the back and maybe under side would help

maarten

Maarten is spot on, George Mulhauser for Plycraft is the most likely candidate. Would need better photos of the back, bottom, etc. to be sure, as there are some imitations out there. I have seen it described as the Mulhauser "Mrs. chair" before. discussed on this forum in the past:

https://www.designaddict.com/forum/General-discussion/Should-I-buy-Plycra...

Yes, it's a George Mulhauser chair for Plycraft. I don't know if it had a name, though--i mean, it probably had a model number but the Mr. and Mrs. chairs had swivel bases and are a bit more common than the same chair with bent ply legs. (The Mr. had a high back, the Mrs. had a low back--I guess because back in those days the Mrs. could not ever fully relax her vigilance over the home. Or something.)

The bent ply legs are the better versions of these, IMO. Much less common and the various tilt/swivel mechanisms on almost all of the others had durability issues. Nice set. Appears is great condition and I even like the ochre vinyl.