This is an enamel lapel pin featuring the NASA "Blue Meatball" logo which was designed in 1959 and stayed in use until 1975 when it replaced with a more modernized emblem. It measures approx. one inch in diameter (~2.5cm).
Please note, this is a not an original pin from the 1960's. This is a high-quality reproduction.
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the pin shown. It has a metal clasp on the back side.