[Civil War]:

INSTRUCTIONS. COUNTERSIGN SIGNALS. HEADQUARTERS, ARMY OF THE POTOMAC.

Washington: 1861 [October 17]. 4to, 8-1/2" x 10-3/4." Caption title as issued. 6, [2] pp. Old vertical fold. Very Good plus. Page [7] has the following manuscript "Note- - This Circular is in so far confidential, that the Officer receiving it, will not make its contents public; nor will he reveal them, unless in the discharge of Signal duty, to others than officers actually in the Service of the United States."
[with] The oversized envelope of Office of the Signal Officer ["Official Business"] addressed to Lt. Col. Connor & Major Hyde of the 7th Maine Infantry.

This scarce General Order No. 29, issued "By command of Major General McClellan," lists elaborately detailed "Countersign and Countersign Signals for the week ending October 24, 1861"; "Day Countersign Signals"; "Night Countersign Signals";"Countersign Signals by Sound"; and General Instructions.
OCLC 43312441 [4- Duke, Huntington, DLC, NYHS] as of May 2023. Item #39281

Price: $875.00