Harvey Reid, Care of A.C.S 2:Bri 3:Div 20th Army

I bought this at the Boxborough show this year (2014). The dealer thought it was a Scott#94 and he placed the date Aug 2nd (1868-70), but he also thought that it had been opened in 1855, which would make it much earlier. When I showed it to David (AMSD) he thought that is was earlier than a #94 and would have been during the Civil War because after the Civil War the Northern Army where not at a Division strength, and this is addressed to Harvey Reid in the 2nd Brigade of the 3rd Division.