Together with the new die two new sizes of envelopes appear, known as Knives 4 and 5, respectively; both are termed "Full Letter" and have three black lines on the inside of the left side flap.
The ten die varieties are divided into three groups by drawing a straight line along the outside of the downward stroke of "T" of "THREE".
1) Line cuts through "S" of "CENTS" (Var. 1, 2, 3, 4).
2) Line goes to right of "S" (Var. 5, 6, 7).
3) Line goes through right lower curve (Var. 8, 9, 10).
It should be understood, however, that the above line prolongation is only tentative, not absolute, and can only be relied upon in a general way as certain specimens will be found which will vary from it to a greater or less extent.
Variety 1:--"T" a considerable distance from upper left curve. "TH" widely spaced, but "HR" near and "R" the highest letter. "RE" wide at top. "EE" wide. "CE" wide at base. "EN" wide. "NT" wide at base. Lower curves deep and far from "C" and "S".
Variety 2:--"T" near curve, and "T" and final "E" below level of "HRE". "TH" near, "HR" near, but "RE" and "EE" wide at top. Upper curves are frequently much deteriorated. Lower left curve far from "C". "CE" and "NT" wide at base. "TS" near. Lower right curve near "S".
Variety 3:--Upper left curve very far from "T". "RE" wide and "R" slants sharply to the right. "EE" near at top. "C" far from lower left curve. "CE" wide at base. "E" slants sharply to the left and "EN" wide at base. "S" close to curve.
Variety 4:--"T" near curve but below level of "H". "HR" wide but "RE" wider, and "EE" widest at top. The main feature of this die is that the lower left curve slants sharply downward and is far from base of "C". "CE" wide at base. "NT" very wide at base. "S" far from curve.
Variety 5:--Upper right curve flattened and top of "T" near curve. "T" low and far from "H". "HR" widely spaced at top, but "RE" still wider. "EE" near. Upper right curve far from "E" both at top and base. Frequently the curves are nearly obliterated.
Variety 6:--Upper right curve near "T". Top of "T" some distance from "H". "RE" wide at top. "EE" wide. The curve is far from top of "E", but slants so that, at the point where it meets the inner oval line, it is near base of "E". Lower left curve near "C" and reaches over the top of the letter. "CEN" near; "NT" near at base. "S" far from curve.
