(The photographs described were marked Commission Exhibits Nos. 616 and 617 and were received in evidence.)
Mr. Eisenberg. Mr. Chairman, I suggest that in the interest of time, since these two photographs are merely continuations of the first series, we go on to the next.
Mr. Nicol, you have further photographs now. These are marked Q-48 and K-1, and these are separate photographs?
Mr. Nicol. Same photographs.
Mr. Eisenberg. That is submitted as 618, Mr. Chairman.
Mr. Dulles. It shall be admitted.
(The photograph referred to was marked Commission Exhibit No. 618 and received in evidence.)
Mr. Eisenberg. Now, was this photograph taken to show the same point as the previous photographs?
Mr. Nicol. Not exactly. This shows the rim of the two cartridge cases. K-1 is just barely visible. Q-48 represents the other half of the picture. And what we are looking at here in the match relationship, at the point of the arrow, is a patch which represents the extractor riding around the rim of the shell at the time that the cartridge was introduced into the chamber. I might qualify that by saying this: in order to be certain of the exact factor which produced this, I would have had to examine the weapon and conducted some tests to ascertain whether this was the extractor or the bolt pushing the cartridge into the chamber when the mechanism was operated.
In any case, the same tool, whether it be the extractor or the bolt, produced this pattern of lines on both the known and the unknown cartridge cases.