These four previously-unannounced triangular stamps will be issued on May 26, the fourth day of Boston 2026.
From the USPS:
These stamps recognize Postcrossing for highlighting the fun of receiving real, 
personalized mail and promoting greater understanding across countries and cultures. Since 2005, Postcrossing has inspired more than 805,000 people in more than 200 countries and territories to send more than 85 million postcards to eager recipients around the world. These stamps may be used to send a postcard or letter from the United States to any country to which First-Class Mail International service is available. These stamps will have a postage value equivalent to the price of the single-piece First-Class Mail International first-ounce machinable letter at the time of use. Issued in panes of eight, these triangular stamps’ colorful illustrations by Jackson Gibbs playfully acknowledge the great distances postcards often need to travel and the efforts of the dedicated workers who help them reach their far-off destinations. Antonio Alcalá, an art director for USPS, designed the stamps.
Updates will be posted below the line with the most recent at the top.
Updated July 15th:
Technical Specifications:
Issue: Postcrossing Stamps
Item Number: 582300
Denomination & Type of Issue: Global Forever® International Rate
Format: Pane of 8 (4 designs)
Series: N/A
Issue Date & City: May 26, 2026, Boston, MA 02205
Art Director: Antonio Alcalá, Alexandria, VA
Designer: Antonio Alcalá, Alexandria, VA
Artist: Jackson Gibbs, Tempe, AZ
Modeler: Daryl DeMont
Manufacturing Process: Offset
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Pane: 8
Print Quantity: 20,000,000 stamps
Paper Type: Nonphosphored Type III, Block Tagged
Adhesive Type: Pressure-sensitive
Colors: Cyan, Magenta, Yellow, Black
Stamp Orientation: Triangle
Image Area (w x h): 2.2960 x 1.1430 in. / 58.3180 x 29.0320 mm.
Overall Size (w x h): 2.6200 x 1.3100 in. / 66.5480 x 33.2740 mm.
Full Pane Size (w x h): 6.5000 x 3.8750 in. / 165.1000 x 98.4250 mm.
Plate Size: 192 stamps per revolution
Plate Number: “P” followed by four (4) single digits
Marginal Markings:
Front: Header: GLOBAL/POSTCROSSING/FOREVER • Plate number in bottom two corners of pane
Back: © 2026 USPS • USPS logo • Two barcodes (582300) • Plate position diagram (8) • Promotional text
Updated July 8th:
Here are the Scott catalogue numbers for this issue:
6100-03 Postcrossing.
6100 diver
6101 astronaut
6102 motorcyclist
6103 cowgirl
Updated April 20th:
Here are the first-day postmarks for this issue:
The Digital Color Postmark measures 2.3″ x 1.50″
The Pictorial Postmark measures 2.7″ x 1.2″
The “special” postmark measures 2.2″ x 1.2″
Updated April 15th:
On May 26, 2026, in Boston, MA, the United States Postal Service® will issue the Postcrossing Global Forever® International rate stamp, in four designs, in a pressure-sensitive adhesive (PSA) pane of 8 stamps (Item 582300). These stamps will go on sale nationwide May 26, 2026, and must not be sold or canceled before the first-day-of-issue. The Postcrossing Global Forever® International rate pane of 8 stamps must not be split and the stamps must not be sold individually.
These stamps recognize the Postcrossing website for highlighting the fun of receiving real, personalized mail and promoting greater understanding across countries and cultures. Since 2005, Postcrossing has inspired more than 805,000 people in more than 200 countries and territories to send more than 85 million postcards to eager recipients around the world. These stamps may be used to send a postcard or letter from the United States to any country to which First-Class Mail International® service is available. These stamps will have a postage value equivalent to the price of the single-piece First-Class Mail International first-ounce machineable letter in effect at the time of use. Issued in panes of eight, these triangular stamps feature colorful illustrations by Jackson Gibbs. Antonio Alcalá served as designer and art director.
Automatic distribution
Special postmark
How to Order the First-Day-of-Issue Postmark:
The first-day-of-issue postmark is a postmark notating the day a stamp is first authorized for use by the Postal Service. Customers have 120 days to obtain the first-day-of-issue postmark by mail. All requests for first-day-of-issue postmarks (Traditional or Digital Color Postmark) must be sent to the following address with the choice of Traditional or Digital Color Postmark identified. All orders must be postmarked by September 26, 2026.
FDOI – Postcrossing Stamps
USPS Stamp Fulfillment Services
8300 NE Underground Drive, Suite 300
Kansas City, MO 64144-9900
The Technical Specifications are not yet available.
The Postcrossing community is going to love these colorful stamps.
As a long time Postcrossing member, I’ve been hoping for these for years!
I participate in Letters Against Isolation, where volunteers send cards to seniors living in isolation. I can’t wait to use them to send to seniors In Canada, Australia, and the UK! They will be a big hit!