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.

Mr. Eisenberg.

Now, did you find that mark repeated on the cartridge case in other places?

Mr. Nicol.

This was repeated on Q-6 and 7. However, what you may be referring to is another series which was only found on Q-6.

Mr. Eisenberg.

Now, could you get to that photograph you just mentioned, Q-6?

Mr. Nicol.

I photographed the Q-6 in three different positions, which I designated as 1, 2, and 3.

Mr. Dulles.

Have we identified Q--6 before on the record?

Mr. Eisenberg.

Yes. Q-6, I think it is stated on the record, is the equivalent of our Commission Exhibit 543.

Mr. Dulles.

What is 543?

Mr. Eisenberg.

543 is a shell found in the TSBD building.

Mr. Nicol.

This is a photograph I took of the head--a portion of the head of Q-6, or Commission Exhibit 543.

Mr. Eisenberg.

May I have this admitted as 619, Mr. Chairman?

Mr. Dulles.

It shall be admitted as 619.
(The photograph described was marked Commission Exhibit No. 619 and received in evidence.)

Mr. Nicol.

It might be well to introduce these, too. These are the same as the ones, which are mounted, except that I have cut them for the purpose of matching them.

Mr. Eisenberg.

I would like to introduce these two photographs--also taken by you, Mr. Nicol?

Mr. Nicol.

Right.

Mr. Eisenberg.

Which are similar, or taken from this photograph. That will be 620 and 621, Mr. Reporter.

Mr. Dulles.

Exhibits 620 and 621 as described will be admitted.
(The photographs described were marked Commission Exhibits Nos. 620 and 621 and were received in evidence.)

Mr. Nicol.

Perhaps in order to illustrate this we ought to get all the three in, or at least another set, so I can show the match relationship photographically--so that this represents another position of Q-6, or 543.

Mr. Eisenberg.

And this is a photograph which has not been admitted yet?

Mr. Nicol.

No.

Mr. Eisenberg.

Mr. Chairman, may I have this admitted as 622, please?

Mr. Dulles.

622 and 623.
(The items referred to were marked Commission Exhibits Nos. 622 and 623, and received in evidence.)

Mr. Dulles.

Would you just briefly describe these?

Mr. Nicol.

This represents another position of the cartridge case, the head of the case--you are looking at the rim, and this is the portion of the head stamp representing millimeter. This was a 6.5 millimeter. You see just a portion of the "5." And what I will be talking about is the marks down against the rim in all of these exhibits.
Now, this is the same cartridge as represented by these other two photo graphs, with a slight rotation.
Now, we have only one which we might have to pass around. But if the photograph