_Type 6._ The top horizontal line projects to left. The bottom horizontal line also. The vertical left line projects to type 9. 5 balls. The middle one is a square. Shading of "E" of "Office" touches the oval. The side balls are below the tops of "Prov., R. I." No period after Cents.
_Type 7._ The top horizontal line projects both to left and right. The right vertical line projects above the corner. 4 balls only. The middle one is gone. They are all small. A period after Cents.
_Type 8._ The top horizontal and left vertical lines both project at the upper left corner. 5 balls. The middle ball is a square. The top of the "E" of "Office" touches the oval. The "s" in Cents is very small, and is followed by a period.
_Type 9._ The top horizontal line projects both ways, and the left vertical line projects above the upper left corner. Both vertical lines are continued down to type 12. 2 balls only, the middle ones are left out. "V" in "Prov." is too large and the "F" of "Five" touches the oval. No period after Cents.
_Type 10._ The top horizontal and right vertical lines both project beyond the upper right corner. 5 balls. The middle one square. The lower leaf of the upper left foliation has no notch. Point after Cents.
_Type 11._ The top horizontal line projects to the left and both verticals project upwards. 5 balls. The middle one is square. The end balls project above top line. No period after Cents.
_Type 12._ Both vertical lines project up to Type 9. 5 dots. Middle one is an oblong rectangle. The next on the right projects above the frame. The one at right end is nearly round, but both those at the left are rectangular. Ball at right side large and flat. No period after Cents.
It has been stated that the engraver of the original plate re-engraved these stamps for the benefit of collectors many years ago. However this may be, there are a number of very dangerous counterfeits in existence, as well as some that are easily detected.
In the following table the lines which touch the letters or other parts are counted as well as those between them. By these differences and peculiarities the position of a given specimen on the plate can readily be determined.
The following peculiarities are noticed in Le Timbre Poste, page 5, 1871.