I'm trying to get some info on these 2 Eames armchairs. I've looked all over the internet but can't find this exact color and base together. They seem to be an early production year and possibly Olive Green (?). They also have that Flame stamp that so many have asked about as well as the double triangle stamp from GATC. I know they are Eiffel base but not sure of the material, maybe steel. They don't have any rust on them and they have been outside. Patent sticker is included in the pics.
Any info would be appreciated! 
seamonkey,
Think of repairing the shock mounts on your chair like replacing the tires on a vintage car. Periodic maintenance is needed on most products to maintain a usable state. The "bell curve" applies: from excellent work to substandard work. Your chairs are perfect for daily use and many years of future enjoyment.
I see no evidence in your photos that suggests the shock mounts or base are not original to the chair. Closeup shots of the mounts would help, but there's no substitute for in-person inspection. Look for clues like abrasions on the shell near the mounts, impressions in the mounts left by previous, different base, or signs of replacement or recent wear to the screw slots. Any or all are red flags.
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