I think there were 23 known copies in the whole world.

Only around 100 are thought to have been made, with just three known copies in the hands of collectors.

There are, however, only two known copies in French prose, of which this is one.

It was never released publicly, and there is no known physical copy.

This work was lost, the last known copy having burned in 1945.

"And you have the only known copy of this source material?"

In 1970 there had been five known copies of the Declaration.

Today, there are only about 40 known copies of this translation.

The video owned by the museum is the only known copy in existence.

There are at least 12 known copies of this painting.