UPSS E27Gi, 1863-65 George Nesbitt &Co., 1c Black on yellow buff, complete wrapper on laid paper, watermark 1, central horiz and vert folds plus a horiz fold 40mm up from the bottom edge, minor faults, still Fine (UPSS $300) (Image)

CV. 60

UPSS E37Kag, National Bank Note Co 1870(?) 3c Yellow brown on white wove paper envelope, 148x83mm, exceptionally fresh and Very Fine (UPSS $400) (Image)

CV. 80

Undersander E37Kbf, 1870(?) National bank Note Co., 3c Black on buff, 150x85mm envelope on unwatermarked wove, Very Fine (UPSS $400) (Image)

CV. 100

UPSS E48Ab, 1874 Plimpton 2c Black on white color trial, printed from untrimmed die on laid unwatermarked paper, 46x65mm, Very Fine (UPSS $200) (Image)

CV. 50

UPSS E48Ac, 1874 Plimpton 2c Red on white color trial, printed from untrimmed die on laid unwatermarked paper, 48x57mm, Very Fine (UPSS $200) (Image)

CV. 50

UPSS E69Ap, E70Al, 1886 Plimpton and Morgan 30c Yellow brown, 90c Purple on amber manila, Die proofs, centered on 95x128mm laid paper with watermark 8 and rounded corners, Very Fine and choice (UPSS $175) (Image)

CV. 50

U293E, c.1879 Letter Sheet Private Issue, No Value, unfolded sheet on wove unwatermarked paper, "U.S. Patent, July 1st, 1879 - Manufactured by American Bank Note Company, New York" imprint on back, pristine and Very Fine (UPSS E860 var.) (Image)

CV. 75

UPSS E801a, 1880 Patented Return Envelope, 3c Red on white, complete envelope, 160x90mm, on wove unwatermarked paper, vertical "UNOFFICIAL SAMPLE" imprint in center, fresh and Very Fine (UPSS $250) (Image)

CV. 60

UPSS 1377a, 1396, 1427, 1435, 1903 1c, 2c, 4c, 5c, Hartford Issue Specimens, complete set of four entires with "SPECIMEN" below indicia (UPSS SF45), fresh and Very Fine, includes the envelope with "Specimen 1, 2, 4 and 5cent Stamped Envelopes,/ Series 1903" in which the envelopes were distributed (UPSS $160) (Image)

CV. 50

Undersander E134Bb, 1958 TWO CENTS Revaluation Surcharge Proof on white entire, size 12, Very Fine; 2009 PF certificate (Image)

CV. 350

Undersander E159B var., US Envelope Co Eagle Vignette Essay, colorless embossed vignette on die cut, scored paper, Very Fine; 2009 PF certificate (Image)

CV. 750

Undersander E168Db, 1958 ONE CENT Revaluation Surcharge Essay on 3c entire with "CANCELLED" across indicia, size 23, Very Fine; 2009 PF certificate (Undersander $650) (Image)

CV. 450

Undersander E168Fa, 1958 "! CENT" Revaluation Surcharge Proof on mint entire, size 12, Very Fine; 2009 PF certificate (Undersander $600) (Image)

CV. 325

Undersander E187Aa, 1968 1 4/10c Brown, Envelope essay on unfolded watermarked wove paper, 164x216mm, Very Fine; 2009 PF certificate (Image)

CV. 1,000

Undersander EA3C, 1961 11c International Airmail Letter Sheet Essay of proposed design with "LETTERGRAM PRIORITY MAIL" imprint at bottom of address panel and "NO ENCLOSURE PERMITTED" on back, unfolded, Very Fine; 1 of just 2 known (Image)

CV. 1,500

UPSS UY1E-Ia, 1878 1c Brooks Paid Reply Postal Card Essay, black on buff card only, fifth type of 1st design essay, 130x77mm, Very Fine and rare (UPSS $1,500) (Image)

CV. 300

UPSS UY1E-Ib, 1878 1c + 1c Brooks Paid Reply Postal Card Essay, black on buff with unsevered buff reply inside (opened for display), fifth type of 1st design essay, bit of light soiling on message portion, still Very Fine (UPSS $1,500) (Image)

CV. 300