Just bought an older Ithaca side x side Damascus barrels 30in. Nice wood serial # 2389x, forend has 2 stamped on it?Barrels are choked modified in each. 12 ga. Receiver has 2 stamped on it. Pat. April 10, 1888, May 22 1888, and March 5 1889. Butt Plate has Ithaca Gun in writing and 2 Ducks.The engraving on receiver has what I think looks like a 'breaking wave'and is repeated on the lever. The Damascus pattern seems to be the same as is in Double Gun Journal issue 2 summer 2000 pg. 47. Would like ANY INFO as to yr, grade etc. THANKS