I just bought one (for considerably more). That one looks pretty nice, and it may just be a case of poor photographic angles and glare (in every picture no less), but I see little or no signs of strawing on any of the right parts, and little if any written or photographic confirmation that they are
not refinished. The extractor in particular looks black to me (but lots of glare makes it hard to tell), as does the safety lever. The right side of the mag release looks to be almost flat black in the 4th picture??? No mention of original finish in the ad, correct? The price seems a little too good for it to be original. It would definitely be a good idea to get a good pic of the area under the safety lever before making a decision. Hope it works out for you.
Here's a pic of the Eagle stamp and extractor on the one I just bought...
