Type ERO1: "The lower left frame junction line and the vertical line of the left numeral box are unbroken"

Perforated 8

Type ERR3: "The lower left frame junction line is unbroken but the vertical line of the left numeral box has a wide break at the bottom."

Type ERR7: "The lower left frame junction line is broken above the top of the spandrel and between the top and line 1, the vertical line of the left numeral box is unbroken."

These links represent "possibilities". Until it has been confirmed that these sheet positions are also found on coils, they will remain inactive.

Type SRO1: "The lower left frame junction line and the vertical line of the left numeral box are unbroken."

Type SRR2: "The lower left frame junction line is unbroken but there is a narrow break at the bottom of the vertical line of the left numeral box Re-entries and retouches"

Type SRR3: "The lower left frame junction line is unbroken but there are two breaks at the bottom of the vertical line of the left numeral box."

Type SRR4: "The lower left frame junction line is absent between the top and line 1 of the spandrel."

Type SRR5: "The lower left frame junction line and the vertical line of the left numeral box are unbroken, but there is a minute dot in the right margin near right centre"

Type SRR6: "A mark in the top of the frame above 'P'"

Type SRR7: "The lower left frame junction line and the vertical line of the left numeral box are unbroken, but there is a break in the vertical line in the louder left between the top of the spandrel and line 1"