CW Navy Commander CDV B/M New York. A nice mid-chest view of a CW Navy Commander or Lt. Commander. You can see the leaves on the shoulder straps, and a hint of the anchor, but he does have 4 total strips in the sleeve. Lt. Com. has only 2, while the Com. has three. In the photo three strips are the same, while the last one looks slightly different. The cdv is sized at 2 3/8 x 4 inches tall. The image is very clean and clear, so clear you can plainly see the eagle and anchor on the buttons under slight magnification. The image back mark (b/m) is "K.A. Lewis/160 Chatham Street/New York.”

Please see the insignia chart in "American Military Equipage 1851-1872 – Volume III” by Frederick P. Todd copyright 1978, page 544 Fig. 185-f for officers’ rank insignia for the various American Civil War period naval regulations.