"Heraldic motifs were also popular at the turn of the century. Many flatware and jewelry manufacturers featured patterns similar to the stampings on Roman coins, and the background against which these medallion type designs were placed is often worked to simulate ancient or slightly worn or broken metalwork. This one-piece cast buckle with applied "coins" is by Parks Bros. & Rogers of Providence and is about 2.5" high. Parks Bros. & Rogers were in business from 1892-1930."
Note/update (2002): I wish to thank the Silver Salon Forum members who suggested that this mark is likely the mark of Howard & Son of Providence, R.I. This firm sold its electroplated goods business to Parks Bros. & Rogers in 1891, but retained its silver business. The company's name was then changed to Howard Sterling Co. It remained in business until 1901. Through 1894, its trademark was a 4-leaf clover partially encircled by the word "sterling" in a horseshoe arrangement (source: Rainwater & Redfield Encyclopedia of American Silver Manufacturers 4th Edition). | 
