The Postal Service and Royal Mail are offering products on usps.com to commemorate last Friday’s wedding between Prince William of Wales and Catherine Middleton.

Customers can collect a piece of history with the official Royal Wedding Miniature Sheet, produced by Royal Mail, Great Britain’s postal service. Each miniature sheet features four stamps of two different engagement photographs of the royal couple and displays Prince William’s coat of arms. Each sheet costs $6.95.

The Royal Wedding Presentation Pack is an illustrated brochure that includes pictures of the couple, information on how the two met, and a Royal Wedding Miniature Sheet. Each pack costs $7.95.

Also available is the Royal Wedding Digital Color Postmark Souvenir Cover. Created by USPS, the souvenir cover’s postmark features a crown, a furling banner and the couple’s wedding date: April 29, 2011. Each postmark costs $4.95 and comes on a No. 10 envelope affixed with a Wedding Roses Forever stamp and two Royal Wedding stamps issued by Royal Mail. A image of the postmark can be viewed at liteblue.usps.gov/news/link/2011/nl_0428royalwedding.pdf.

Customers can pre-order the Royal Wedding products, which went on sale May 31, on The Postal Store website or by calling 800-782-6724. Supplies of each item are limited.