While I'm not a 3-speed guy, I looked at the ad and it seems to be a beautiful bike. I love the Raleigh green color, they also had a coffee color that is pretty nice, but I like the green.
Paint looks to be in exceptional condition. I didn't try to zoom in or anything, just looked at the posted pics.
$250.00 is probably way upper end for a bike like this. The ad says, "make offer", so I suggest you do some more homework and make a realistic offer, perhaps around $185.00 to start out. Any lower and the seller will most likely shut down. Others will certainly chime in here.