Logo appeared in a puzzle in this year's MIT Mystery Hunt: https://www.mit.edu/~puzzle/2019/puzzle/turtle_power.html https://www.mit.edu/~puzzle/2019/puzzle/tur

Logo appeared in a puzzle in this year's MIT Mystery Hunt: https://www.mit.edu/~puzzle/2019/puzzle/turtle_power.html https://www.mit.edu/~puzzle/2019/puzzle/turtle_power.html Fun puzzle. Took me back...