Strong postmark and unusually high 30-cent rate on this note from Naval Lt. Edward V. Johnson to Boston Naval Yard Agent Daniel Broadhead regarding pay matters.  Nice Naval postal history. Names need further research but found this on Broadhead:

SECRETARY OF THE NAVY LETTERS TO COMMANDANTS AND NAVAL AGENTS, 1808-1865
IN NATIONAL ARCHIVES (April 24, 1833 ‑ 1839)

To Daniel D. Brodhead, Navy Agent, Boston, MA, 10 Apr 1835:

"Your letter dated the 16th ultimo enclosing bills of Messrs Kittridge & Blake Flag and Crockett for Furniture for the Frigate Constitution amounting to Twelve hundred & eighty six 75/100 dollars was duly recd. The Constitution having been fitted for the accommodation of a Minister, the extra charges in those bills are allowed‑‑ The bills are herewith returned."

See additional scans...note has separations at folds and someone affixed stamp hinges to repair tear where seal was located. Face of cover is not affected and is very presentable.  ASCC catalog 1997 value: $75.