gta-6

This patch is the patch issued by Schirra's office. It appears to be a combination of the souvenir version (with 'GTA-6') and the worn version, with the detailed embroidery).

This patch is identical to the original patches worn by the astronauts when the flew into space. The souviner version is slightly different and says 'GTA-6' instead of 'Gemini 6'.
Eagle One Aerospace

This is the patch that the astronauts wore in training, though it has become the common, souvenir version. The design worn in space is slightly different.
3" version - A-B Emblem