By 1919, Ithaca catalogues no longer offered composite iron and steel barrels and Ithaca moved to simplify their line. The No. 1 with Twist barrels and the No. 1-Special with Cockerill Steel barrels went away, what was the No. 1 1/2 with the leafy engraving became the new No. 1 with steel barrels. The No. 1 with the leafy engraving lasted thru 1935 of the NID period --
This leafy engraved Grade 1 28-gauge was shipped 04/11-35 to Henry Tharoff.
By the way, they are not Acanthus. Acanthus are on the post-1915 Grade 4 Ithacas --