Here are the full page scans of the 408 code. Note that page 2 and 3 were mislabeled by investigators with the Examiner code labeled Chronicle, and the Chronicle code labeled Examiner. Also note that Part 2 was labeled upside down. That said, the three pages are in order and rotated correctly here. The scans show the full page of the 3 sheets, with the small exception that the upper right corner of Part 3 is slightly cropped.

Special thanks to Reddit user 241waffledeal for uploading these scans.

Letter Grid

I have always been intrigued that these codes are so well-designed, layout-wise. Straight rows and columns, pretty good penmanship–so unlike the letters. I decided to see if a squared up grid fit over the letters. The scans were all brought into Adobe Illustrator with vector graphics overlaid. Turns out a grid fits very well over the letters, more or less perfectly over Part 1 and Part 2, and almost all of Part 3.

Last Line is Mis-Aligned

The entire last line of the code is absolutely out of line with main grid, and basically follows a different (green) grid offset to the upper right.

The last line (plus the last letter of the seventh line) is of course the unsolved 18 characters.

I think it is unlikely there is any meaning in this, only the observation that the last line was likely added later–and Zodiac didn’t get it lined up perfectly.

Page Measurements

The other observation I made about these pages are these measurements. Note that the paper is 10.5 x 7.25 inches (Monarch stationary). The grid measured 6.1667 x 2.9167 inches

I took a look to see what the grid measured in other units. Turns out that picas, a unit used in printing, typography, and page layout, yields some interesting numbers.

The grid measures 37 x 17.5 picas. The paper measures 63 x 43.5 picas, which means the grid is exactly 26 picas less than the paper size in both the horizontal and vertical measurements.