There's no question the backmarks on cdvs became more elaborate as the 19th century progressed. Interestingly, the Ross Barnes cdv I have taken by Warren has a simple "Warren Cambridgeport Mass" marking situated diagonally on the reverse, which is less elaborate than the cdv that is the subject of this thread. This is an exception to the norm.
Also, based on the mount style and uniform style, this cdv is certainly dated to the early-mid 1860s.
Last edited by GaryPassamonte; 11-01-2015 at 07:18 PM.
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