This silver decoration is very similar to the National Silver Deposit Ware decoration, "Evangeline." The differences between the two decorations may be due to the size and shape of the glass on which the decoration was placed.
The decoration has "Sterling" included in the design. It was found on a Liberty Works ice bucket. The same design has also been found on a Paden City ice tub. No documentation for this decoration has surfaced.
The Evangeline decoration is shown in an National Silver Deposite Ware advertisement on p. 216 in Measell & Wiggins, Great American Glass of the Roaring 20s & Depression Era Book 2. Here is a closeup of the decoration that appeared in the ad: http://chataboutdg.com/gallery/details.php?image_id=619