Re: 1961 Corvette value ?
I love looking through the old catalogs. That decal has the different shades of white, the top half a little grayer, so it could be a Corvette, or even Jaguar with tank tabs removed, but the American's decal didn't have the two shades split in the middle. But it has to be a 63 or later, coppertone wasn't listed on any Schwinn before 63. I'm lucky enough to have a 63 jaguar frame, but not with a near perfect paint job like this bike. I also noticed the coppertone paint on your bike looks a tad darker than the excellent ones I've seen. Either it is just the lighting of the pic, or it's had a complete repaint. Still a great bike, I'd get it. And to help your side of the deal, the serial number can be deciphered easily. It will be on the left dropout and will start with a letter, signifying the month, and then a number. The first number is the last digit of the year, 1=61 2=62 3=63 4=64 5=65. Easy enough and he can't argue with that. It'll have 1 letter followed by 6 numbers total. B356321 would show the bike built in February of 1963.
Good luck on the deal!