Brimfield Ms., 5c Black,
Unrecognized Postmaster's Provisional. Adhesive affixed to top right of
cover, blue "Brimfield Ms. Sep. 2" with day in ms., adhesive tied by
similar penstrokes in identical ink on 1847 folded letter to Chelsea Mass.,
matching blue "Paid" handstamp, some edgewear, Fine, the status of this
cover has been the subject of much debate among students as to whether this
is in fact a postmaster's provisional, accompanied by documentation incl.
letter by Eliott Perry stating that "There is at least a 50% chance that
the adhesive is authentic" but that since it was used after release of the
1847 Issue it does not deserve listing, accompanied by two stampless covers
from the same correspondence (Image) 
New York N.Y., 5c Black, "ACM"
Initials (9X1). Ample margins to just into at left, tied by red
"U.S." in frame cancel on Dec. 2, 1846 folded letter to Plattsburgh
N.Y., business contents, red "New York 3 Dec. 10cts." integral-rate
circular datestamp and "Paid" in arc, stamp creased from file fold and with
small faults, otherwise Very Fine, rare use of the "U.S." cancel days after
the U.S. City Despatch Post closed its carrier operation
(Image) 
New York N.Y., 5c Black, "ACM"
Initials (9X1). Full margins to in at a few points, tied by red
"New-York 5cts. 29 Jan." integral-rate circular datestamp on large part of
folded letter to Scotland, matching "Paid" in arc handstamp,
horizontal file fold affects stamp and few defects, almost appears Fine,
with 1990 Jakubeck certificate (Image) 
New York N.Y., 5c Black, "ACM"
Initials (9X1). Two horizontal pairs, Positions 6-7, 11-12, large
margins to just touched, tied by red square grids and "New-York Jan. 27"
circular datestamp on 1847 folded cover to Mobile Ala., blue "20" rate, red
"paid" in arc handstamp, address partly eradicated, vertical file fold does
not affect stamps, some overall soilingVERY FINE APPEARANCE. A RARE DOUBLE 10-CENT RATE USAGE OF THE 5-CENT NEW YORK POSTMASTER'S PROVISIONAL TO MOBILE, ALABAMA.
The 20c pays double the 10c rate per half ounce for letters sent over 300 miles. Ex Caspary. Scott Retail as strip of four on cover $20,000.00 (Image)
New York N.Y., 5c Black, "AC
M" Initials (9X1a). Large margins to just in at bottom, cancelled by
penstrokes on blue 1846 folded letter to Providence R.I., red "U.S.
Express Mail N.Y. N.York Mar. 27" route agent's circular datestamp with
matching "Paid" handstamp, ms. "5" rate, vertical file folds do not affect
stamp, Fine (Image) 
New York N.Y., 5c Black, "AC
M" Initials (9X1a). Horizontal pair, large margins to just in, tied by
blue penstrokes on blue 1846 folded letter to Columbia Pa., red "New-York
10cts. 4 Mar." integral-rate circular datestamp and matching "Paid" in arc
handstamp, vertical file fold barely affects left stamp, right stamp small
tear at top, purple discoloration in circular datestamp, still Fine, with
1978 A.P.S. certificate (Image) 
New York N.Y., 5c Black,
"A.C.M." Initials (9X1b). Full margins, cancelled by two blue
penstrokes which leave initials clearly visible on folded letter to Madison
Conn., red "New-York 5 cts. 5 Sep." integral-rate circular datestamp and
matching "Paid" arc, some overall staining, otherwise Fine, with 1991 P.F.
certificate (Image) 
New York N.Y., 5c Black,
"A.C.M." Initials (9X1b). Large margins to clear, cancelled by
penstrokes on 1845 folded letter to Hunter N.Y., red "New-York 5 cts. 17
Aug." integral-rate circular datestamp and matching "Paid" arc, fresh and
Very Fine (Image)