I found a 629-2 unfluted cylinder,6inch barrel, red ramp sight on the front, and white outline on the rear. It looks really lonely, is $650.00 a good price? Looks to be in very good condition. Looking for a little advice.

I found a 629-2 unfluted cylinder,6inch barrel, red ramp sight on the front, and white outline on the rear. It looks really lonely, is $650.00 a good price? Looks to be in very good condition. Looking for a little advice.

What length is the barrel?