Plimsoll mark

Some were still in the stream, loaded with wheat to the Plimsoll mark, ready to depart with the next tide.

There was no Plimsoll mark in those days, and this cockle-shell of a vessel was literally loaded down to the scuppers.

With his bicycle laden considerably above the Plimsoll mark, he pedalled wearily homewards.

To vary the figure, this essay dips its Plimsoll-mark full under.

Plimsoll was the originator of the famous "Plimsoll mark," and this is what caused him to be called the sailors' friend.