STS-102 - 4" - Unknown maker

STS-102 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Discovery and launched from Kennedy Space Center, Florida. STS-102 flew in March 2001; its primary objectives were resupplying the ISS and rotating the Expedition 1 and Expedition 2 crews.
This patch is virtually identical to the A-B Emblem STS-102 patch, however, there are some subtle differences, such as the stars of the USA flag.