I haven't been able to find the soldier, but it shouldn't be that difficult considering he was in Company "F" of the 1st Artillery. Cool image and badge that have always been together. Brooch is made from a seated liberty quarter dollar from the period. The item "Civil War Ambrotype of Union Artillery Soldier Armed with ID Brooch made from coin" is in sale since Saturday, January 25, 2020.
This item is in the category "Collectibles\Militaria\Civil War (1861-65)\Original Period Items\Photographs". The seller is "bbvd" and is located in Torrington, Wyoming. This item can be shipped to United States.