This large powder horn is similar to others from the French & Indian War and nearly identical to one in The Library of Congress Collection which many experts identify as being made during the French & Indian War period by an artist known as“Pointed Tree Maker”due to the makers affinity of incorporating pine trees in his motif. The horn measures approximately 19 inches from the spout around the back to the lobe and is around 10 inches in circumference. The throat has a flared spout tip, three raised ribs, and a smooth section before the main body. The body of the horn is decorated with a map of various locations in New York and the St. Lawrence Valley, including Montreal. The designs are accented with black and reddish brown pigment. There is a more detailed scene at the bottom of New York City with ships in the harbor and a rural scene including a hunter shooting a buck. There is also a large U.K. coat of arms. Just behind the lion is a faint "Sun Set" marking. Below Fort Ontario is an empty panel, and the horn is also marked "A MAP/ OF AMERICA." The base plug is wood (likely pine) and was secured without pins. Much of the design is very similar to the horn shown in Plates IV and XXXVI in "American Engraved Powder Horns: A Study Based on the J.H. Grenville Gilbert Collection" by Stephen V. Grancsay described as "engraved by a professional artist with a map showing the forts along the Hudson River from Albany to Lake George and Lake Champlain, and from Albany up the Mohawk River by Lake Oneida to Niagara and Lake Ontario, with the St. Lawrence River beyond indicating the route from Montreal. The engraved lines are browned." They go on to know that Robert M. Hartley had identified other horns by the same maker, including horns marked "Rebben Smith, 12 Apr. 1760," "Thomas Tuttle, 1761," and "Friderick Kremer 1760" from the Grider Collection and one inscribed "Petre Lot 1761" from the Hiram J. Halle Collection.

Very fine with distinct designs overall, much of its polychrome colors showing with minor chips on the ribs on the spout section, some chips in the wood base plug, a very smaller flakes on the body, and generally very minor overall wear for its age.