3c Red, F. Grill (94).
Rich color, rounded corner, tied by cork cancel, "New Bedford Mass. Nov.
23" (1868) double-circle datestamp on Grant Campaign cover with
portrait and "We'll fight it out on this line..." quote, to treasurer of
"Marshpee" Indians at South Sandwich Mass., pencil docketing, Very Fine (Image) 
5c Brown, F. Grill (95).
Horizontal strip of three, beautiful bright shade and clear grills, right
stamp has tiny corner crease, left stamp minute margin tear, cancelled by
lightly struck targets, "Scooba Miss Jan. 7" (ca. 1871) circular datestamp
on registered 3c Green entire to Shubuta Miss., backflap missing and
small simply-patched nick in top edge of cover, otherwise Very Fine, signed
Ashbrook who notes "A registered cover with the fee paid by this stamp is a
Very Rare item" -- we concur and regard this as one of the most outstanding
domestic usages of the 1868 5c F Grill extant (a stamp rarely found on any
kind of cover) -- with 1989 P.F. certificate
(Image) 
12c Black, F. Grill (97).
Deep shade, nearly perfect centering, tied by Shield fancy cancel
and "Cambridge Mass. Jul. 14" (1868) circular datestamp on small cover
to London, England, red Boston and London datestamps, slightly
reduced at left, Extremely Fine, a charming 12c F Grill usage, ex Lehman,
Haas and Hill (Image) 
15c Black, F. Grill (98).
Clear impression, centered to left, used with 3c Ultramarine (114),
tied by "Palm Leaf" cancels, "Omaha City Neb. Jan. 11" circular datestamp
on blue registered cover to H. B. Shaw in Alfred Me., ms. registry
marks, Very Fine, scarce mixed-issue franking, ex Hessel and Hill, with
1988 P.F. certificate (Image) 
30c Orange, F. Grill
(100). Well-centered, dark shade, few nibbed perfs, used with 10c
Yellow Green, F. Grill (96), beautifully centered, rich color, both
tied by San Francisco duplex datestamp and circle of wedges cancel, magenta
"San Francisco Paid All Jun 4" (1869) circular datestamp on cover to
Hong Kong, China, receiving backstamp, slightly reduced at
leftVERY FINE. AN EXTRAORDINARY FRANKING FOR THE QUADRUPLE 10-CENT DIRECT RATE TO HONG KONG VIA PACIFIC MAIL STEAMSHIP COMPANY. THIS COMBINATION OF GRILLED ISSUES IS RARELY SEEN ON COVER.
Although a number of covers to Hong Kong and other Far East countries exist with the 1868 30c F Grill, almost all originated on the East Coast and were sent via British Mail (via Marseilles or Southampton) at the prevailing 34c or 42c rates. The 10c American Packet rate via San Francisco and Yokohama is represented by a fair number of 10c Grilled Issue covers (single or double rate), but quadruple rates are rare, especially with the 30c F Grill.
Ex Emerson and Sheriff (Image)