2¢ Carmine 89LL74

The right 2/3 of the bottom right horizontal numeral box line is thick - or slightly doubled.
The bottom frame below the right ‘2’ shows the beginning of a relief break.

Leo's Notes

The bottom of the RNB is thick from the right edge of the left vertical member of the 2 to the right corner. Due to retouching?
The UR and LL vertical lines also appear to be lightly retouched.

Relief Break Progress:

89LL74 Thin horizontal sliver touching the bottom frame below the middle of the 2 in the NB. The left side of the sliver is just beginning to detach from the frame. The sliver’s pivot point is at the right end.
89LL64 The sliver is more evident because the left end is slightly further from the frame.
89LL54 The sliver, although thin, is quite visible. The left side is fully detached from the frame. The sliver is attached to the frame only at the pivot point.
89LL44 The sliver is gone; however, it left no noticeable dent in the bottom frame.