How Safety Coffins Work 😨

if you woke up in a coffin during the chalera outbreak you might actually have a chance to survive you see because there were so many instances of people being buried alive during this time a tube was connected from the coffin to the surface allowing air flow above ground a bell was attached to a cord running into the coffin if you woke up trapped pulling the cord would ring the bell this signal alerted Cemetery workers that you were still alive