The Postal Service has authorized a first-day-of-issue postmark design for the first-day-of-issue ceremony in Washington, DC, where all 10 stamps in the coil will be dedicated on June 14. The Postal Service has also authorized a first-day-of-sale postmark for dedication events held on June 14 in cities other than the officially designated first-day-of-issue city. Customers have 60 days to obtain the first-day-of-issue and the first-day-of-sale postmarks by mail.