On page 142 of the WR there is a WC exhibit no. 2707, which shows a "scale model view" of the sixth floor and a view of the support columns for the 6th floor ceiling and the 7th floor......
Since Studebaker's map reveals that the support columns are spaced 13 feet apart, and we can see that the first column to the south of the north wall is three feet south of the stairs going down to the 5th floor. ( see page 142) so the next E/W row of support columns are 26 feet from the north wall...... The tip of the arrow that indicates where the rifle was found is at 19 feet from the north wall, or about 6 feet south of the column that was 13 feet from the north wall. Studebaker measured the distance from the north wall to the rifle and recorded that distance as 15' 4 " .....That's 2 feet 4 inches south of the first column.
The WC exhibit 2707 apparently isn't as accurate as Studebaker's map, but it serves very well to show that the rifle was not at the location indicated in the fake DPD in situ photo......
The way the arrows were placed on that exhibit, I would have to describe as generalized and approximate.
I have the Studebaker Map showing the down-stairway beginning 10' 8" from the north wall. The row of columns being centered on 13' means the south face of the column is 13' 4.75" from the north wall (assuming the notation of "9 1/2" square" is correct). This is slightly less than two feet north of where the rifle was found.
Looking west | | Exhibit marked by officer pointing to rifle location | | Looking east (Rifle discovery opening out of frame to camera-right) |
Now we simply have to see if any boxes were to the south of the south side of the column (the column displays a "No Smoking" sign). The Crime Lab photos show a row of boxes between the rifle location and the back-stairs; this is the same row of boxes that go east-to-west, a portion of which abuts the south face of the column.
If that box abutting the south side of the column (the box has a horizontal piece of tape running along its length) is, say, 18 1/4" long, then the south-facing end of that box is 14' 11" (now we're down to five inches north of where the rifle was found). But see the south ends of the boxes between the box abutting the column and the boxes against the west wall? Some jut towards the south a bit and the row of boxes overall progressively goes a bit southward. Enough such that where the boxes that were to the north of the Carcano would be about 15' 4".