[aristeides]

I guess the likeliest explanation is that Woodward goofed in his Friday story, and Der Spiegel followed him in that error.

On the other hand, I have not yet seen a statement in any report that the three copies were identical. I suppose it's possible that whoever wrote the document wrote separate copies for every recipient, instead of copying one original on a copying machine, and then the different copies might have different pagination.

[michigander]

I'm going with three copies of a four page letter.