The sign accompanying the LES tower jettison motor. It reads
Apollo Tower Jettison
A Morton Thiokol solid-propellant rocket motor like this one was used to pull
away the escape tower
assembly that topped the Saturn V launch vehicle.
The dual nozzle design is most unusual; the thrust developed is about 173,550
newtons (39,000 lb).
Donated by Morton Thiokol, Inc.