The markings on the Trophy are:

With a Maltese Cross on the left of the bottom of the Jug.
This means that it made by Gorham Manufacturing Co. of Providence, RI in 1886 (the Cross indicates the date). Today, Gorham is a wholly owned subsidiary of Lenox, Inc.
Among Gorham's major commissioned works are the statue of George Washington in the U. S. Capital rotunda, the statue of Theodore Roosevelt at the Museum of Natural History in New York City, and many U. S. Presidents have chosen Gorham sterling silver tableware for use during their years in the White House including Abraham Lincoln, Ulysses S. Grant, and both Bush presidencies. Gorham also created the trophies for some of the world's premier sporting events including the Indianapolis 500 race and of course the New York Canoe Club and the International Challenge Cup.
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