Those light areas on his jacket and under his chin are not damage to the actual image, the black paint on the back of the glass has just flaked away there, so those areas appear lighter... The image/emulsion is not damaged.
The item "1860s CIVIL WAR SOLDIER Cased Ambrotype Photo" is in sale since Monday, April 27, 2020. This item is in the category "Collectibles\Photographic Images\Vintage & Antique (Pre-1940)\Tintypes". The seller is "jack_mord" and is located in Woodinville, Washington.This item can be shipped worldwide.