U.S. City Despatch Post,
N.Y., 3c Black on Green (6LB5d). Dark Moss Green shade, crease cracks
enamel, tied by red "U.S. City Despatch Post, Feb. 16, - O'Clock" Type I
double-line circular datestamp on folded cover, 1843 docketing confirms
early Glazed paper use in Green shade -- this variation is rare -- also
unusual for datestamp to be used as canceller at this stage, vertical fold
with slight toning, otherwise Fine and scarce
(Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Green Glazed (6LB5). Original gum, large
margins, bright shade, creasing caused by gum, otherwise Extremely Fine (Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Green Glazed (6LB5). Two distinctive shades
(one close to Green but not quite), red "U.S." in frame cancels, one has
full to large margins, other clear to large, Fine-Very Fine (Image)
U.S. City Despatch Post,
N.Y., 3c Black on Blue Green Glazed (6LB5). Ample to large margins,
tied by red "U.S." in frame cancel struck twice, blue ms. "3" partly
under stamp, red "Paid" in arc, red "U.S. City Despatch Post, Jun.
16, - O'Clock" Type II circular datestamp on light blue folded cover, 1845
docketing on flap, Very Fine, letters bearing the "Paid" in arc and ms.
rate were presumably paid with coin and received a stamp affixed by the
carrier office, they are very scarce (Image) 
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Green Glazed (6LB5). Three different shades
-- one could be classified as Green 6LB5d and another as Blue 6LB5b -- on
separate covers with red "U.S. in frame cancels and circular datestamps,
stamps cut in or small faults, covers show wear, Fine group (Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5b). Positions
8-10/13-15/18-20/23-25L, block of twelve from the lower right corner of the
left pane, original gum, full even margins except touched at lower left,
beautiful impression on bright blue paper, four creases causing cracks in
paper have been reinforced with hinges, small burn hole at lower right
rebacked with paper, faint stain in two stamps at upper leftVERY FINE APPEARANCE. THIS REMARKABLE BLOCK OF TWELVE IS THE LARGEST RECORDED MULTIPLE AND ONLY KNOWN BLOCK OF THE UNITED STATES CITY DESPATCH POST CARRIER ISSUE. AN IMPORTANT ARTIFACT OF UNITED STATES PHILATELY.
The United States City Despatch Post goverment carrier issues are extremely rare in multiples, either used or unused. The largest multiple of 6LB3 (unsurfaced Light Blue paper) is believed to be an unused pair. There are a few used strips of the glazed surface-colored shades (Blue Green, Green, Blue) -- a strip of five being the largest -- and in unused condition there is at least one pair, one strip of three (lot ??) and this block of twelve, which is the only block extant. Sometime after Ezra D. Cole acquired this block at the 1957 Caspary sale for Josiah K. Lilly, its margins were trimmed slightly, and a small hole was burned through the paper at lower right.
Ex Hawkins, Caspary, Lilly and Hall (realized $21,000 hammer). Scott Retail $23,000.00 (Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5b). Positions 5/10/15R,
vertical strip of three from the upper right corner of right pane, original
gum, large margins to cut in at bottom, horizontal creasesTHE SECOND LARGEST UNUSED MULTIPLE OF THE UNITED STATES CITY DESPATCH POST CARRIER STAMP.
As noted in the description of the unique block (lot ??), unused multiples of any of the U.S. City Despatch Post government carrier issues are rare. This strip is identical in shade and gum color to the block, and it possibly originated from the upper right corner of the same sheet (the block from the left pane, and the strip from the right pane).
Ex Ackerman and Hall. Scott Retail $2,500.00 (Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5b). Original gum, large margins
all around, bright shade, corner crease and tiny gum wrinkle, otherwise
Extremely Fine, scarce with original gum
(Image) 
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5b). Original gum, large margins
to clear at top, tiny gum wrinkle, otherwise Fine, scarce (Image)
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5b). Full to large margins, deep
shade, red "U.S." in frame cancel, Very Fine
(Image) 
U.S. City Despatch Post, New
York N.Y., 3c Black on Blue Glazed (6LB5). Vertical strip of three and
single, Positions 10/15/20L and 12L, strip has huge margins, one stamp
creased before use, single has three large margins, in at lower right,
scissors-cut at lower left, tied by red "U.S." in frame cancels on folded
cover to Athens N.Y., red "New-York Oct. 18" (1844) circular datestamp and
matching "Paid" arc with ms. "12-1/2" rateVERY FINE. ONE OF EIGHT RECORDED EXAMPLES OF THE UNITED STATES CITY DESPATCH POST CARRIER STAMP USED TO PREPAY INTER-CITY POSTAGE. ONLY TWO COVERS ARE KNOWN WITH A STRIP OF THREE (TWO OTHERS EXIST WITH LARGER STRIPS), THIS BEING THE ONLY ON-COVER MULTIPLE OF 6LB5b (ON BLUE PAPER). A MAGNIFICENT CARRIER USAGE.
The description of lot ?? provides a list of eight recorded covers, including one front and one with a stamp missing, with the United States City Despatch Post carrier issue used to prepay inter-city postage. The strips of five, four and three (two known) on four of these covers represent the largest on-cover multiples.
Ex Caspary and Hall (realized $13,000 hammer). Scott Retail $14,000.00 (Image)