Interesting fact about hinged wall opening covers

The gulf of Tonkin incident was an incident off vietnam that led to the US getting much more involved in the Vietnam war. The commander in charge of the fleet involved was Admiral George Morrison.

..... Dad of Jim Morrison of the Doors .

(I have no knowledge as to any naughty magazine collection kept in his cabin under his bunk, in case any snowflakes want to retrospectively fire him for cleaning his private cannon on Navy time )