Rare CDV of Scientist Professor James Curtis Booth / US MINT / Gutekunst 1860s sewing The black paint on the

The black paint on the back is applied in silhouette style ("relievo") and it is cracking

Unusual and great subject matter

Bottom-right corner of the mat is stamped

I will try to find it

Rare CDV of Scientist Professor James Curtis Booth / US MINT / Gutekunst 1860s sewing The black paint on theVery rare original CDV of James Curtis Booth (28 July 1810 21 March 1888) , professor and chemist who was the melter and refiner at the U. S. Mint in Philadelphia for many years. Photographed by Gutekunst in Philadelphia in the mid 1860s. CDV is approximately 4" x 2. 5" and in very good or better antique condition. Shipping: First Class (flat mailer with cardboard). Boxed Priority also available at checkout.