Yellowstone Souvenir Spoon Eagle Nest Rock,Silver?

“YELLOWSTONE PARK”, in a horseshoe arch over a bear, beneath which is a shield embossed with “US, OF, AMERICA” in 3 lines, then an elk or stag, last is a spouting geyser, beneath which is embossed “GIANT GEYSER”. The inner bowl is embossed “EAGLE NEST ROCK”, and has an embossed depiction of it. The tip of the back of the handle is also embossed with “EAGLE NEST ROCK”, & the picture, beneath that is an eagle with a shield on it’s breast, then a buffalo head. The back of the handle is marked 18??, R? WALLACE A1. May be silver plated, but has a beautiful luster more like sterling, This item will also be on display at Lincoln Antique Mall, Lincoln Mo. So please check with me regarding availability if interested.