Picked this up the other day, it's been refinished, but is in excellent mechanical condition. A number of gunsmiths over the years have made Lightnings with SAA grips, this one has an odd angle to it and is longer, fits differently in the hand. General opinion from the Colt forum is that it is not Colt factory work although the workmanship is very good. Here it is pictured with a regular lightning from the same year, 1904.