Mr. Eisenberg. By use of this photograph, could you explain some of the markings on Q-48, which is illustrated on the left-hand side and which is Commission Exhibit 545, and K-1, which is on the right-hand side, which is the test cartridge, which led you to the conclusion that both shells were fired from the same rifle?
Mr. Dulles. 545 is one of the shells found on the sixth floor?
Mr. Eisenberg. That's correct.
Mr. Nicol. This was the lone one that was found, I understand.
Mr. Eisenberg. L-o-n-e?
Mr. Nicol. Right.
Mr. Eisenberg. Again, for the record, what Mr. Nicol is referring to is that for some reason the shells were grouped into a group of two and a group of one shells by the Dallas police, apparently on the basis that two shells were very close together, and the third shell was a little further away. But they were actually all within a quite small area. And this is just an arbitrary grouping.
Mr. Nicol. Now, although this compares—is a comparison of Q-48 and K-1, Commission Exhibits 545 and 572—I'm sorry, 557—the same would apply to comparable regions on Exhibits 543 and 544.
I have placed arrows just for fiduciary marks so we can be looking at the same area.
Taking the top arrow, the area running across there is rather broad, an eroded or corroded band, a valley. Below it is a fairly distinct mark. The two small marks appear below it. And then on the projectile, at the middle arrow, there is a broad flat plane. This plane has an irregular contour, and what I have attempted to do is match a projection at the lower portion of this—you also see that the contour at the top is equivalent, insofar as the spatial area.