2¢ Carmine 6LL27
A distinctive retouch of the vertical line of the left numeral box.
Comments
Confirmed by LB using the plate proofs at LAC.
Leo's Notes
Slight thickening of the bottom frame below the left side of the LNB. There is a horizontal white line in the middle of the retouched area and the frame extends slightly into the left margin.
The left side of the left frame appears weak opposite the bottom of the LNB.
The bottom half of the vertical line of the LNB is thicker than the top half.
Guide dot on the right side of the left inner oval.