The mount has rounded corners, likely for placement in an album. The backmark is that of Fredericks, New York. It is also signed by Forshee on reverse. Please see my other items for more Civil War images, letters, and documents.
The item "Civil War CDV of Surgeon John M. Forshee, 11th & 66th New York Died 1862" is in sale since Sunday, October 7, 2018. This item is in the category "Collectibles\Photographic Images\Vintage & Antique (Pre-1940)\CDVs". The seller is "iron-horse-sales" and is located in Champaign, Illinois.This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica.