1938, 3¢ Iowa Territory, Bureau photo essay of an unadopted design (Scott 838-E), 44 x 29 mm, Very Fine. (Image)

Estimate $200-300

1938, 3¢ Iowa Territory, Bureau photo essay of an unadopted design (Scott 838-E), 44 x 29 mm, Very Fine. (Image)

Estimate $200-300

1938, 3¢ Iowa Territory, Bureau photo essay of an unadopted design (Scott 838-E), 44 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1943, 2¢ Allied Nations, Bureau photo essay of an unadopted design (Scott 907-E), 27 x 29 mm, Very Fine. (Image)

Estimate $200-300

1945, 3¢ United Nations, Bureau photo essay (Scott 928-E), a model similar to the adopted design, encased and mounted in a B.E.P. special folder, with note on back "stamp designed by Leon Helguera, N.Y.C.", Very Fine, undoubtedly unique. (Image)

Estimate $750-1,000

1947, Centenary Philatelic Exhibition souvenir sheet, printer's trial impression proof of the 5¢ (Scott 948P), on hard wove paper, also a second piece with albino impression, Very Fine, with printer's envelope dated Feb 12-47 and signed Harry Conwizer, undoubtedly unique. (Image)

Estimate $300-400

1994, 20¢ Virginia Apgar, large die proof of vignette only in issued color (Scott 2179E), hinged on a die-sunk 6" x 8¾" card; couple tiny stains at the edges of the proof, otherwise Very Fine. (Image)

Estimate $500-750

1994, 20¢ Virginia Apgar, large die proof in issued color (Scott 2179P), mounted on a die-sunk 6" x 9" card, Extremely Fine. (Image)

Estimate $750-1,000

1994, 20¢ Virginia Apgar, large die proof in issued color (Scott 2179P), die-sunk on a sheet of coated paper approximately 11½" x 9", Very Fine. (Image)

Estimate $750-1,000

1994, 20¢ Virginia Apgar, trial color large die proof in black (Scott 2179P), die-sunk on a sheet of coated paper approximately 11½" x 9"; heavy die sinkage slightly split at the top, small manuscript "X" (approval?) at the lower right, otherwise Very Fine. (Image)

Estimate $750-1,000

1995, 32¢ Polk, large die proof on gummed white coated paper (Scott 2587P), inscribed in the plate "7/17/95 #2", 74 x 120 mm; two pieces of clear tape at the top, Fine to Very Fine. (Image)

Estimate $350-500

1992, 29¢ Eagle & Shield, large die proof of the brown (engraved) portion only (Scott 2597E), mounted on a die-sunk 6" x 8¾" card, Very Fine. (Image)

Estimate $500-750

1992, 29¢ Eagle & Shield, plate proof on self adhesive paper without red "USA 29" (Scott 2597P), incomplete block of 4 (vertical pair plus part of another pair at the left), Very Fine. (Image)

Estimate $350-500

1992, Voyages of Columbus, 1¢ 4¢ & $1 souvenir sheet, imperf proof (Scott 2624P), o.g., never hinged, light fold between stamps and illustration, otherwise Very Fine.
Scott $750. (Image)

Estimate $250-350

1992, Voyages of Columbus, 1¢ 4¢ $1 & 10¢ 15¢$2 souvenir sheets, imperf proofs (Scott 2624P, 2628P), o.g., never hinged; each with a light bend near the right edge, otherwise Very Fine.
Scott $1,500. (Image)

Estimate $500-750

1992, 10¢ 15¢ & $2 Voyages of Columbus souvenir sheet, imperf proof (Scott 2628P), o.g., never hinged; typical light vertical bend, otherwise Very Fine.
Scott $750. (Image)

Estimate $500-750

1992, 29¢ Hummingbirds booklet pane (Scott 2646aPi), uncut proof sheet of 33 panes from the American Bank Note Co. archives, imperforate with two vertical gutters between three rows of 11 panes; folded twice horizontally and once vertically, leaving only 18 panes unaffected by creases (there are actually small tears where the vertical crease meets the horizontal creases); additionally, there are two spots where inspectors have circled small flaws, indicating that this may have actually been a rejected sheet rather than a proof sheet.
Scott $14,850 as individual panes. (Image)

Estimate $3,500-5,000

1993, 29¢ American Music booklet pane, plate proof, perforated horizontally (Scott 2737aPc), uncut top half of two panes - Elvis, Bill Haley, Clyde McPhatter & Ritchie Valens - with left sheet margin, o.g., never hinged, Extremely Fine. (Image)

Estimate $750-1,000

1993, 29¢ American Music booklet pane proof (Scott 2770aPa), partial uncut proof sheet of 11 panes from the American Bank Note Co. archives, perforated horizontally and imperforate-between, o.g., never hinged; folded vertically through the middle pane, four pieces of transparent tape at the top edge affecting panes 1, 3-6, 8 & 9, otherwise Very Fine. Unpriced. (Image)

Estimate $750-1,000