I am attempting to plate a stamp with visible portions of all four of its neighbors. I have Neinken's book, and the first thing I did was to try to discern which positions were the most likely from guide dots and the vertical row spacing/alignment.
It is vertical row alignment that I find the most difficult to determine. Even with partial portions of stamps on both side margins, I can't determine the displacement up or down unless I'm sure that the scanned image has been rotated so that the design is exactly vertical. The asymmetrical design makes that not so easy to do.
Are there points on each side of the design that are on a horizontal line, and that I can use as a reference to vertically align the image? It appears from his discussion of plate 1L (Fig. 11-D and 11-E) that Neinken determined vertical row alignment by drawing a line under ornament "L" of the left stamp to ornament "A" of the right stamp. I believe that I've rotated the image of the stamp below to within 0.1 degree of vertical, but I can't be sure. It causes me to question whether the bottoms of these two ornaments are actually horizontally aligned on the same stamp (see 2nd image with grid lines). If not, how can they be used on stamps side-by-side to determine vertical row alignment?
I think that my is from position 78R2, but my determination comes mainly from the faint diagonal line coming from the right guide dot of 68R2.


