Page 39 - Charles Shreve - William H Gross United States 1847 Issue

B. Plate Varieties Double Transfers

Double transfers- plate varieties in which a portion of the design is doubled - were made on the plate by the transfer
roll when it created an accidental doubling as the design was laid down. Four double transfer varieties are known and each
exist in about 1 out of 200 copies extant.

Type "A" - Position 1R Type "B" - Position 31R Type "C" - Position 2R Type "D" - Position 41R
Doubling of right ''X". Doubling of "US", Doubling of right "X", Doubling of bottom and
One of two unused "POST OFFICE" and "US" and "CENTS". e lower left frame line as
copies recorded right top frame line. e well as left "X".
Used from Canada

Type "A" Type "B" Type "C" Type "D"

I

Type "B" - Position 31R- JU 4, 1851, St. Louis, MO to Philadelphia, PA.