It was made around 1903. There are no factory records, so that's just an estimate based on Bob Elliott's extrapolation. I have a straight grip FE. Lefever made a fair number of straight grip guns. What is more rare on a Lefever is the chain Damascus. Most of the Lefevers I have seen are crolle (fingerprint) Damascus. I have seen a couple of chain Damascus ones and a stars & stripes Damascus gun. Both of these are less common than crolle. In any case, you have a nice looking Lefever.

Rich