1¢ Green 126UR36
We are not certain that this is the proper image for this position.
"Doubling of the vertical line of the left box, of the left crown, and of the ends of the horizontal lines in the upper left and lower left" As per Marler's descriptions, this one could be one of 126UR36, 126UR46, 126UR56 or 126UR66.