This version was announced by the USPS on December 19, and will be issued January 27th without a ceremony, but with a Kansas City postmark. A sheet version of this design was issued February 18, 2017.

Says the USPS, “The stamp features eight graphic top hats in Uncle Sam’s signature style, with red and white vertical stripes above a blue band with a white star and a gray brim. Beneath each hat is an oval shape representing a face, each in a different shade, meant to suggest the ethnic and racial diversity of the United States. Art director Antonio Alcalá designed the stamp. The words “ADDITIONAL OUNCE” on this stamp indicate its usage value.”

The latest information on this issue will appear below the large illustration. The Scott catalogue number is 5341.

December 19th: The stamp will be issued in coils of 100.

December 21st: On January 27, 2019, in Kansas City, MO, the U.S. Postal Service will issue the Uncle Sam’s Hat (Non-denominated additional ounce rate) stamp in one design (with new format), in a pressure-sensitive adhesive (PSA) coil of 100 stamps (Item 746900). The stamp will go on sale nationwide January 27, 2019, and must not be sold or cancelled before the first-day-of-issue.

Availability to Post Offices: Item 746900 Uncle Sam’s Hat Non-denominated Additional Ounce Rate, PSA Coil of 100 Stamps: Stamp Fulfillment Services will not make an automatic push distribution to Post Offices.

How to Order the First-Day-of-Issue Postmark:
Customers have 120 days to obtain the first-day-of-issue postmark by mail. Each cover must have sufficient postage to meet First-Class Mail requirements. They may purchase new stamps at their local Post Office or at The Postal Store website at usps.com/shop. 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:

FDOI – Uncle Sam’s Hat 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 May 27, 2019.

Updated January 9th:

Technical Specifications:

Issue: Uncle Sam’s Hat Stamp
Item Number: 746900
Denomination & Type of Issue: Non-denominated Additional Ounce Rate
Format: Coil of 100 (1 design)
Series: N/A
Issue Date & City: January 27, 2019, Kansas City, MO 64108
Art Director: Antonio Alcalá, Alexandria, VA
Designer: Antonio Alcalá, Alexandria, VA
Typographer: Antonio Alcalá, Alexandria, VA
Modeler: Sandra Lane/Michelle Finn
Manufacturing Process: Offset, Microprint
Printer: Banknote Corporation of America
Press Type: Alprinta 74
Stamps per Coil: 100
Print Quantity: 100,000,000 stamps
Paper Type: Phosphor Tagged Paper, Overall
Adhesive Type: Pressure-sensitive
Processed at: Banknote Corporation of America
Colors: Pantone 7687, Pantone 7621, Cool Gray 7, Cyan, Magenta, Yellow, Black
Stamp Orientation: Vertical
Image Area (w x h): 0.73 x 0.84 in./18.542 x 21.336 mm
Stamp Size (w x h): 0.87 x 0.98 in./22.098 x 24.892 mm
Plate Size: 744 stamps per revolution
Plate Numbers: “B” followed by seven (7) single digits
Coil Number Frequency: Plate number every 31st stamp

The only first-day cancellation for this issue is the “FIRST DAY OF ISSUE” four-bar.