You are considering a very RARE 1851 Crystal Palace Expo London Col. Sam Colt Repeating Firearm Pinback Button.It is approximately 1" x 3/4" Rectangle. On the back of the pin it states the following. Dated 1851 from the Great Exhibition at the Crystal Palace in Hyde Park, London. During the 1851 Exhibition Samuel Colt demonstrated his prototype for the 1851 Colt Navy along with his older Walker and Dragoon revolvers. This is a hard to find RARE Pinback Button. Any REASONABLE offer will be considered. Please read and review all the condition description in detail, review all photos, and ask questions or ask for more photos before making your final decision. The item "RARE 1851 Crystal Palace Expo Col. Sam Colt Repeating Firearm Pinback Button" is in sale since Saturday, June 2, 2018. This item is in the category "Collectibles\Historical Memorabilia\Fairs, Parks & Architecture\Fairs & Expositions\Other Fairs & Expositions". The seller is "1975eaglescout" and is located in Lawrenceville, Georgia. This item can be shipped to United States.