Originally the Ithaca Flues No. 1 1/2 had the roll-stamped dog of the Field Grade, the No. 1 and the No. 1 Special, with the addition of the zig-zag border engraving and came with Damascus Barrels.
Ithaca Flues No. 1 1 2, 1912-13.jpg
In mid-1915, they went to the bold floral engraving and began offering the option of Krupp Steel barrels --
Ithaca Flues No. 1 and one half, July 1915.jpg
During that 1914-15 transition I have seen all manner of combinations of engraving on various bits of the guns, but gold washed triggers is a new one. In that era Ithaca barrel lengths were "about." I have a No. 1 Special 28-gauge of that era that has 30 3/16 inch barrels. Lettered from Walter Snyder back when he still had the records as 30-inch though Ithaca never cataloged 28-gauge barrels that long.