1888 Ohio Centennial Exhibition Agricultural Award Medal. Silver. 51.2 mm. 46.8 Grams. By George H. Lovett. Harkness OH-90. Choice About Uncirculated. Obv: Three Muses around a coin press. Rev: 1788 OHIO 1888 / AWARDED / TO / COLUMBUS BUGGY CO / CARRIAGES & BUGGIES / CENTENNIAL. Warm pearl gray patina with hints of multi-color iridescence. From the Q. David Bowers Collection.