SPECIAL NOTE: There are many United States stamps that look similar to the rarities listed below. Some of the differences between expensive rarities and common stamps can be subtle, including differences in perforation, shade and size. These stamps should have certificates from a recognized expertizing committee, such as The Philatelic Foundation or P.S.E.

Our census of the 10c Z Grill records just six examples, including the copy contained in the New York Public Library collection. The Zoellner stamp illustrated above was part of the collection formed by William K. Herzog, one of the leading experts on grilled issues.

The 10c Z Grill was probably produced on or about February 19, 1868, at the same time the first 10c stamps (along with more 12c) were run through the E Grill on the other device (10c and 12c E Grill eku 2/29/68--see timeline). 10c F Grill production, using new sheets printed on much thinner paper, occurred in May 1868 (eku 5/26/68).

Census No. History: PFC:	85D-CAN-01 Laurence & Stryker 11/17/1958 9198 “Genuine"	85D-CAN-02 Mielstrup Coll. - RAS 5/23/1973, Lot 150 "trivial corner perf rounding" Isleham Coll. - RAS 5/1986 McNall Coll. - Sup. 10/26/1992, Lot 141 24671 “Genuine” 259617 “Genuine”	85D-CAN-03 Schilling Coll. RAS 3/25/1975 (Rarities) APS Certificate Illustrated in Brookman Vol. 2, p. 136	85D-CAN-04 Ishikawa Coll. - Christies 9/1993, Lot 532 - $40,000 4943 “Genuine” 50292 “Genuine” 276462 “Genuine”
Census No. History: PFC:	85D-CAN-05 Herzog Coll. RAS 4/5/1986 (Rarities) Zoellner Coll. - RAS Sale 804 10/9/1998 Lot 233 - $80,000 41751 “Genuine w/ thin spot & small corner crease”	85D-CAN-06 Miller Coll., NYPL Ex Stevenson Sold to B. K. Miller by Elliott Perry

This Web Site is Copyright © Siegel Auction Galleries, Inc. - All Rights Reserved