Oswald in the doorway: the blog of the Oswald Innocence Campaign, by Ralph Cinque

So, we know now that carbonless copies print in blue. 

Therefore the dual white copies with variations between them cannot be attributed to that. 

And carbon paper copies are in pink, green, and yellow, with only the original being white. So, that doesn't work either.

You want to try something else? It won't make any difference. You can't wash the stink off this thing.