This stamp comes in the famous "blue
paper" variety, although quite rare and unlikely to show up in an
unchecked mixture of Washington Franklins. The "blue" is actually
a "gray color", not really "blue", but it may take
on a slightly bluish tint. The stamp was made with a higher percentage of
rag content (about 30%) resulting in a grayish tinge to the stamp. If
you think your stamp is the "blue paper" variety, you MUST have
this stamp certified. Even faulty, poorly centered examples of this stamp
command a premium far in excess of the certification fee. If the stamp is
genuine, it will retrieve a far higher price when certified. Conversely, do
not purchase a non-certified copy of this stamp. If the seller is unwilling
to pre-certify the stamp, there is a high likelihood that the genuineness of
the blue-paper stamp is in question.
