Discus420,
Compare the engraving at the following link. It is similar but different. I think it was a trial period and final decisions for the pattern were not yet set.
http://www.dogsanddoubles.com/2016/01/good-gun-alert-16g-ithaca-flues-grade-1-12/Cleaning the metal: The barrels can be wiped with #0000 steel wool and a light to medium oil. Don't be agressive. Use a brass brush on and around the ribs. As the oil muds up, wipe clean and re-oil. When clean to your satifaction coat with a light coat of gun oil( or degrease and coat with paste wax). The same can be done with the frame, but you don't want to get oil in the stock, so removing the wood first is best.
