Skylab II - 4" - Lion Brothers

Skylab 3 (also SL-3 and SLM-2) was the second manned mission to the first American space station, Skylab. The mission began July 28, 1973, with the launch of three astronauts on the Saturn IB rocket, and lasted 59 days, 11 hours and 9 minutes. A total of 1,084.7 astronaut-utilization hours were tallied by the Skylab 3 crew performing scientific experiments in the areas of medical activities, solar observations, Earth resources, and other experiments.

The Lion Brothers Skylab II patch has a bare cloth back and features hidden crew initials "BGL" upsidedown at the bottom of the red fill stitching.