March 11th: The Scott catalogue number for this issue is 5157.
Updated January 27th: Here is the digital color postmark for this issue: 
It measures 2.98 x 1.4 inches.
Updated January 18th:
On January 22, 2017, in Kansas City, MO, the U.S. Postal Service will issue the $23.75 Gateway Arch Priority Mail Express stamp, in one design, in a pressure-sensitive adhesive (PSA) pane of 4 stamps (Item 111300).
The stamp will go on sale nationwide January 22, 2017.
The U.S. Postal Service celebrates the Gateway Arch, in St. Louis, Missouri, with a new Priority Mail Express stamp. The Gateway Arch was built as a memorial to President Thomas Jefferson and the 19th-century traders and pioneers for whom St. Louis was the gateway to the West. The stamp art depicts the majestic stainless-steel arch at sunset in its setting on the banks of the Mississippi River. Towering above the city’s skyline, the Gateway Arch is reflected in the rippling water below, where a barge passes by. Designed by art director Greg Breeding, the stamp features a digital illustration created by Dan Cosgrove.
Stamp Fulfillment Services will make an automatic push distribution to Post Offices of a quantity to cover approximately 30 days of sales.
How to Order the First-Day-of-Issue Postmark:
Customers have 60 days to obtain the first-day-of-issue postmark by mail. They may purchase new stamps at their local Post Office, at The Postal Store website at http://www.usps.com/shop, or by calling 800-782-6724. They should affix the stamps to envelopes of their choice, address the envelopes (to themselves or others), and place them in a larger envelope addressed to:
FDOI – Gateway Arch Stamp
USPS Stamp Fulfillment Services
8300 NE Underground Drive, Suite 300
Kansas City, MO 64144-9900
After applying the first-day-of-issue postmark, the Postal Service will return the envelopes through the mail. There is no charge for the postmark up to a quantity of 50. There is a 5-cent charge for each additional postmark over 50. All orders must be postmarked by March 22, 2017.
There are two philatelic products for this stamp issue:
- 111316 First-Day Cover, $24.19
- 111321 Digital Color Postmark, $24.90
Technical Specifications:
Issue: Gateway Arch Stamp
Item Number: 111300
Denomination & Type of Issue: $23.75 Priority Mail Express Rate
Format: Pane of 4 (1 design)
Series: N/A
Issue Date & City: January 22, 2017, Kansas City, MO 64108
Art Director: Greg Breeding, Charlottesville, VA
Designer: Greg Breeding, Charlottesville, VA
Typographer: Dan Cosgrove, Chicago, IL
Artist: Dan Cosgrove, Chicago, IL
Modeler: Joseph Sheeran
Manufacturing Process: Offset, Microprint
Printer: Ashton Potter (USA) Ltd. (APU)
Printed at: Williamsville, NY
Press Type: Stevens, Vari-Size Security Press
Stamps per Pane: 4
Print Quantity: 3,000,000 stamps
Paper Type: Nonphosphored Type III, Block Tag Applied
Adhesive Type: Pressure-sensitive
Processed at: Ashton Potter (USA) Ltd. (APU)
Colors: Black, Cyan, Magenta, Yellow
Stamp Orientation: Horizontal
Image Area (w x h): 1.42 x 1.085 in/36.07 x 27.56 mm
Overall Size (w x h): 1.56 x 1.225 in/39.62 x 31.12 mm
Full Pane Size (w x h): 4.12 x 3.45 in/104.65 x 87.63 mm
Plate Size: 20 stamps per revolution
Plate Numbers: “P” followed by four (4) digits
Marginal Markings:
Front: Plate number in two corners of pane
Back: ©2016 USPS • USPS Logo • Four barcodes (111300) • Plate Position Diagram • Promotional Text
Updated January 5th: This stamp will be issued Sunday, January 22nd with no ceremony and a Kansas City, MO, postmark.
from the USPS December 28, 2016:
The Postal Service celebrates the Gateway Arch, in St. Louis, MO, with a new Priority Mail Express stamp. The Gateway Arch was built as a memorial to President Thomas Jefferson and the 19th-century traders and pioneers for whom St. Louis was the gateway to the West. The stamp art depicts the majestic stainless-steel arch at sunset in its setting on the banks of the Mississippi River. Towering above the city’s skyline, the Gateway Arch is reflected in the rippling water below, where a barge passes by. Designed by art director Greg Breeding, the stamp features a digital illustration created by Dan Cosgrove.
It measures 2.91″ x 1.39″.
A special ceremony for the Lili’uokalani Gardens Priority Mail stamp will be held Monday, Jan. 23, at 11:00 a.m. at the Shoroan Tea House, Lili’uokalani Gardens in Hilo.
On August 11, 2017, in Independence, OH, the U.S. Postal Service® will issue the Azulillo stamped card Forever® priced at 38 cents (34-cent postage + 4-cent surcharge) in one design.
Customers have 60 days to obtain the first-day-of-issue postmark by mail. They may purchase new stamps at their local Post Office, at The Postal Store® website at usps.com/shop, or by calling 800-782-6724. They must affix the stamps to envelopes of their choice, address the envelopes (to themselves or others), and place them in a larger envelope addressed to:
It measures 2.9″ x 1.12″. In addition, there will also be a show pictorial for Americover.
a. (49¢) Photograph of Oscar de la Renta
It measures 3″ x 1.3″. Here is the design for the pictorial cancel: 
It measures 2.97″ x 1.14″. There is also a “special” postmark that local post offices may offer: 
It measures 2.87″ x .98″.
The U.S. Postal Service is issuing the Oscar de la Renta Forever stamp to honor one of the world’s leading fashion designers. For 50 years, Oscar de la Renta created glamorous, sophisticated clothes that showcased the distinctively feminine attributes of the women who wore them. His innovative designs and close attention to detail elevated American style and brought international attention to New York as a world leader in fashion.
Patriotic Nonprofit, the new non-denominated, nonprofit-price stamp, showcases the letters “USA” in blue, accompanied by a bright red star on a white background with a blue border. To create the new design, the 2016 USA stamp art was rendered slightly smaller to accommodate the blue border. Intended for bulk mailings by authorized nonprofit organizations, this stamp will be issued in coils of 10,000. Art director Antonio Alcalá designed the 2017 Patriotic Nonprofit stamp using the 2016 USA stamp art he designed with Leslie Badani.
The Digital Color Postmark for this issue measures 2.27” x 1.45″. 
The B&W pictorial (rubber) postmark measures 2.99” x 1.70”.
On October 5, 2017, in New York, NY, the U.S. Postal Service will issue Christmas Carols stamps (Forever priced at 49 cents) in four designs, in a pressure-sensitive adhesive (PSA) booklet of 20 stamps (Item 677300). The stamps will go on sale nationwide October 5, 2017.
Issue: Christmas Carols Stamps
The 2017 Christmas season will be celebrated with four new Forever stamps featuring images that illustrate four beloved Christmas carols: “Jingle Bells,” “Deck the Halls,” “Silent Night,” and “Jolly Old Saint Nicholas. ” Familiar lines from each song highlight the individual stamps. Shades of blue in the stamp backgrounds evoke the evening scenes from the four carols. This booklet of 20 stamps includes five of each design. The late Howard E. Paine was art director; artist Steve McCracken created the original art. 
WHAT:
WHEN:
The U.S. Postal Service showcases Ezra Jack Keats’ most beloved story, The Snowy Day. Written and illustrated by the celebrated children’s author, it was one of the first prominent 20th-century picture books centered on an African-American child. Each of the four new stamps in this 20-stamp booklet features a different illustration of main character Peter exploring and playing in his neighborhood while wearing his iconic red snowsuit. The images include Peter forming a snowball; sliding down a mountain of snow; making a snow angel; and leaving footprints in the snow. Art director Antonio Alcalá of Alexandria, VA, designed the stamps. The stamps may be pre-ordered in early Sept. for delivery shortly after the Oct. 4 issuance at usps.com/shop.
The Digital Color Postmark measures 3″x2.232″. 
The B&W pictorial (rubber) postmark measures 2.353″ x 1.5”. 
The special postmark for use by other post offices measures 2.7” x 1.232”.
WHAT:
BACKGROUND:
It measures 2.90″ x 1.45″.
It measures 2.93″ x 1.38″. Here is the black-and-white pictorial: 
It measures 2.97″ x 0.48″.
On May 23, 2017, in Concord, MA, the U.S. Postal Service® will issue the Henry David Thoreau stamp (Forever® priced at 49 cents), in one design, in a pressure-sensitive adhesive (PSA) pane of 20 stamps (Item 475100). The stamp will go on sale nationwide May 23, 2017.
Format: Pane of 20 (1 design)
With his personal example of simple living, his criticism of materialism and the questions he raises about the place of the individual in society and humanity’s role in the natural world, Henry David Thoreau (1817-1862) continues to inspire readers. For 26 months, Thoreau lived in a one-room house on a lake just outside his hometown of Concord, MA, writing prolifically while farming, reading, thinking, taking long walks and observing nature around him. “Walden,” the 1854 book he wrote about his experience, still holds the attention of readers by blending elements of numerous genres to create a complex, eclectic and unique work. Art director Greg Breeding designed this stamp with original art by Sam Weber. 
