1891, 1¢ Blue on Off-White Card, Proof. On 117 x 96mm small mottled off-white cardstock; light corner crease, otherwise Very Fine. Scott No. UX11E.
USPCC No. S12Pe; $200. USPCC $200
(Image)

USPCC $200

1891, 1¢ Blue on Grayish White, Printer's Waste, Double Impression in Blue and Black, One Inverted. Vertical unsevered pair of cards, each with normal impression in blue and a second impression inverted at the bottom of the card in black; some wrinkles and a small tear, cut a bit irregularly at left, Fine and scarce printer's waste. USPCC No. S12P var.
Scott No. UX11P var.; Estimate $300 - 400. Est. $300-400 (Image)

Est. $300-400

1891, 1¢ Blue on Grayish White, Printer's Waste, Double Impression in Blue and Black, One Inverted. Vertical unsevered pair of cards, each with poor impression in blue and a second impression inverted at the bottom of the card in black; some wrinkling, Fine and scarce printer's waste. USPCC No. S12P var.
Scott No. UX11P var.; Estimate $300 - 400. Est. $300-400 (Image)

Est. $300-400

1891, 1¢ Black on Grayish White, Trial Color Proof. Block of four with printer's pencil highlighting poor stamp impression, Very Fine. Scott No. UX11TC.
USPCC No. S12TC; Estimate $300 - 400.

Parts of sheets reached collectors that had been used by the contractor in first setting the plates in the press and adjusting the makeready. Some of the impressions were in black and some in blue. Many were poor impressions. Est. $300-400 (Image)

Est. $300-400

1891, 1¢ Black on Grayish White, Trial Color Proofs. Group including black printed on one side, black on one side and grayish black on reverse, black on thin wove paper (faulty), F.-V.F. Scott No. UX11TC.
USPCC No. S12TC; Estimate $200 - 300.

Parts of sheets reached collectors that had been used by the contractor in first setting the plates in the press and adjusting the makeready. Some of the impressions were in black and some in blue. Many were poor impressions. Est. $200-300 (Image)

Est. $200-300

1891, 1¢ Blue on Grayish White, Production Specimen. Issued card with violet-black "U.S. Postal Card Agency, Birmingham, Conn. Jun 9, 1891" oval datestamp and red-violet "Third Ass't P. M. Gen'l, P.O. Dept., Received, Jun 10, 1891" cds, Very Fine and unique. Scott No. UX11PS.
USPCC No. S12PSa; $500.

This was the finished card submitted to the Post Office Department about six-months before the cards were finally issued. USPCC $500
(Image)

USPCC $500

1891, 1¢ Blue on Grayish White, Production Specimen. Issued card with violet "U.S. Postal Card Agency, Birmingham, Conn." oval datestamp; tone spot lower right edge, Fine. Scott No. UX11PS.
USPCC No. S12PSb; $500. USPCC $500
(Image)

USPCC $500

1891, 1¢ Blue on Grayish White, Production Specimen. Issued card with bluish-black "Specimen" Type E handstamp below stamp, Very Fine, Only 4 Recorded Examples. Scott No. UX11PS.
USPCC No. S12PSd; $250. USPCC $250
(Image)

USPCC $250

1891, 1¢ Blue on Grayish White, Production Specimen. Issued card with "SAMPLE." printed in blue at lower left, Very Fine. Scott No. UX11PS.
USPCC No. S12PSea; $450. USPCC $450
(Image)

USPCC $450

1891, 1¢ Blue on Grayish White, Double Impression, One Inverted. Mint card, first impression normal and second intense impression inverted; light top right corner bend, Very Fine.
Scott No. UX11b; $9,000.

ONE OF ONLY THREE RECORDED EXAMPLES OF THE 1891 1¢ BLUE POSTAL CARD DOUBLE IMPRESSION ERROR, ALL ARE MINT. Scott $9,000
(Image)

Scott $9,000