Dr. Seuss The Cat in the Hat commemorative stamp from 1999, 33 cent denomination, issued as a First Day of Issue collectible.

• Features the iconic Cat in the Hat character from Dr. Seuss's popular children's book series.

• Includes a postmarked envelope dated May 26, 1999, Springfield, Massachusetts, marking the first day of issue.

• Envelope contains a gold foil replica of the stamp mounted on a navy blue background.

• Printed text on the envelope details the significance of the stamp and Dr. Seuss's contribution to children's literature.

• Stamp design by Howard Paine, issued by the U.S. Postal Service.

• Perfect for collectors of literary or commemorative stamps and Dr. Seuss memorabilia.

• Postal Commemorative Society

• “photos may have been enhanced with AI”