5 SIMPLE TECHNIQUES FOR SUPERSONIC PLANE IN SILVER COIN

”  Other microprinting over the plane contains “X-1” over the horizontal stabilizer of the plane in addition to a horizontal row of a few “USPS” letters representing the plane’s pitot tube. From his early decades being a fighter ace in World War II to the final time he broke the audio barrier in 2012 - at the age of 89 - Chuck Yeager