Announced November 20, 2018. The most recent information will appear after the large illustration and the introductory description from the USPS. Four new postcard stamps celebrate the beauty and wonder of coral reefs. Each stamp depicts a type of stony coral, along with associated reef fish, in a highly stylized manner: elkhorn coral, shown with two French angelfish; brain coral, with a spotted moray eel; staghorn coral, with bluestriped grunts; pillar coral, with a coney grouper and neon gobies. Art director Ethel Kessler designed the stamps. Tyler Lang created the stamp art.

Updated February 28th:
On March 29, 2019, in St. Louis, MO, the U.S. Postal Service® will issue the Coral Reefs stamps (non-denominated priced at the postcard rate) in four designs, in a pressure-sensitive adhesive (PSA) pane of 20 stamps (Item 120200) and a PSA coil of 100 stamps (Item 745100). The stamps will go on sale nationwide March 29, 2019, and must not be sold or cancelled before the first-day-of-issue.

Four new postcard stamps celebrate the beauty and wonder of coral reefs. Each stamp depicts a type of stony coral, along with associated reef fish, in a highly stylized manner:

• Elkhorn coral, shown with two French angelfish;
• Brain coral, with a spotted moray eel;
• Staghorn coral, with bluestriped grunts; and
• Pillar coral, with a coney grouper and neon gobies.

Art director Ethel Kessler designed the stamps. Tyler Lang created the stamp art.

• Item 120200, Coral Reefs (Non-denominated Priced at the Postcard Rate) PSA Pane of 20 Stamps
• Item 745100, Coral Reefs (Non-denominated Priced at the Postcard 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 – Coral Reefs Stamps
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 July 29, 2019.

Technical Specifications (pane):

Issue: Coral Reefs Stamps
Item Number: 120200
Denomination & Type of Issue: Postcard Rate Non-denominated, Mail-use
Format: Pane of 20 (4 designs)
Series: N/A
Issue Date & City: March 29, 2019, St. Louis, MO 63121
Art Director: Ethel Kessler, Bethesda, MD
Designer: Tyler Lang, Portland, OR
Typographer: Ethel Kessler, Bethesda, MD
Artist: Tyler Lang, Portland, OR
Modeler: Joseph Sheeran
Manufacturing Process: Offset, Microprint
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Pane: 20
Print Quantity: 125,000,000 stamps
Paper Type: Nonphosphored Type III, Block Tag
Adhesive Type: Pressure-sensitive
Processed at: Ashton Potter (USA) Ltd. (APU)
Colors: Pantone 635 C Seafoam, Black, Cyan, Magenta, Yellow, Pantone 2234 C Aqua
Stamp Orientation: Vertical
Image Area (w x h): 0.73 x 0.84 in./18.542 x 21.336 mm
Overall Size (w x h): 0.87 x 0.98 in./22.098 x 24.892 mm
Full Pane Size (w x h): 5.35 x 4.93 in./135.89 x 125.222 mm
Plate Size: 400 stamps per revolution
Plate Numbers: “P” followed by six (6) single digits
Marginal Markings:
Front: Plate numbers in four corners of pane
Back: ©2018 USPS • USPS Logo • Two barcodes (120200) • Plate position diagram • Promotional text

Technical Specifications (coil):

Issue: Coral Reefs Stamps
Item Number: 745100
Denomination & Type of Issue: Postcard Rate Non-denominated, Mail-use
Format: Coil of 100 (4 designs)
Series: N/A
Issue Date & City: March 29, 2019, St. Louis, MO 63121
Art Director: Ethel Kessler, Bethesda, MD
Designer: Tyler Lang, Portland, OR
Typographer: Ethel Kessler, Bethesda, MD
Artist: Tyler Lang, Portland, OR
Modeler: Joseph Sheeran
Manufacturing Process: Offset, Microprint
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Coil: 100
Print Quantity: 600,000,000 stamps
Paper Type: Nonphosphored Type III, Block Tag
Adhesive Type: Pressure-sensitive
Processed at: Ashton Potter (USA) Ltd. (APU)
Stamp Orientation: Vertical
Image Area (w x h): 0.70375 x 0.84 in./17.875 x 21.336 mm
Stamp Size (w x h): 0.84375 x 0.98 in./21.431 x 24.892 mm
Coil Size (w x h): 0.98 x 84.375 in./24.892 x 2143.125 mm
Colors: Pantone 635 C Seafoam, Black, Cyan, Magenta, Yellow, Pantone 2234 C Aqua
Plate Size: 768 stamps per revolution
Plate Numbers: “P” followed by six (6) single digits
Coil Number Frequency: Plate numbers every 32nd stamp below stamp image

Updated March 5th:

Only a pictorial (B&W) first-day cancel is being offered for this issue: It measures 2.90″ x 1.39″

Updated May 6th:
Here are the Scott catalogue numbers for this issue:

5363 (35¢) Coral Reefs – Elkhorn coral and French angelfish, serpentine die cut 11¼x10¾
5364 (35¢) Coral Reefs – Brain coral and Spotted moray eel, serpentine die cut 11¼x10¾
5365 (35¢) Coral Reefs – Pillar coral, Coney grouper and Neon gobies, serpentine die cut 11¼x10¾
5366 (35¢) Coral Reefs – Staghorn coral and Blue-striped grunts, serpentine die cut 11¼x10¾
a. Horiz. or vert. strip of 4, #5363-5366

5367 (35¢) Coral Reefs coil stamp – Pillar coral and Coney grouper and Neon gobies, serpentine die cut 9 ½ vert.
5368 (35¢) Coral Reefs coil stamp – Staghorn coral and Blue-striped grunts, serpentine die cut 9 ½ vert.
5369 (35¢) Coral Reefs coil stamp – Elkhorn coral and French angelfish, serpentine die cut 9 ½ vert.
5370 (35¢) Coral Reefs coil stamp – Brain coral and Spotted moray eel, serpentine die cut 9 ½ vert.
a. Horiz. strip of 4, #5367-5370