Four US souvenir covers for Apollo missions. The covers have minor handling wear, and three flaps are either sealed or partially sealed.

Apollo 14: US Navy Recovery Force; 10-cent First Man on the Moon stamp; USS New Orleans cancel

Apollo 15: United States Navy, 2 5-cent astronaut stamp pair; USS Okinawa cancel

Apollo 16: Atlantic Recovery Force, 8-cent stamp, Norfolk VA cancel

Apollo 17: 8-cent Santa stamp, Kennedy Space Center cancel

Most items under $20 ship in a first-class envelope with collectible stamps and with glassine (for loose stamps) and card stock for protection; more expensive or heavier items may go Ground Advantage or Priority Mail. 

Check out my store for stamps, postal stationery, and covers (first day, space, flight, and more) from the US and worldwide. Most items come from my historian dad’s collection amassed over the course of more than 65 years. He specialized in the US, Nepal, and mountain climbing but collected from all continents.