2¢ Carmine 87LR91
Marler had two examples in his collection. The one not illustrated here shows several dots in the lower left margin not visible here. Due to the margin widths and the cancels, it is difficult to be certain that the positions are the same. However, the details of the vertical line in the right numeral box and the faint dot just inside the upper left frame, across from the crown, make it very likely.
Comments
While not discussed in his book, Marler's personal collection had additional CPVs, usually with multiple examples.