Mr. Dulles. You think she did?

Mr. Shaneyfelt. On the film there are pictures.

Mr. Specter. Was the position of Mrs. Muchmore and Mr. Nix ascertained through a geometric calculation, lining up various points as you have just described?

Mr. Shaneyfelt. Well, it is actually a geometric calculation, although no strings were drawn or no lines were drawn. It is a matter of standing in a position out there with Mr. Nix's camera, and viewing the two different photographs we had selected, until we arrived at a point that matched.

Mr. Specter. Was there reasonable mathematical certainty in that alinement, within the limits of your observations of their pictures?

Mr. Shaneyfelt. Yes.

Mr. Specter. Did Mr. Zapruder himself point out his location on the abutment as depicted on Exhibit No. 883?

Mr. Shaneyfelt. That is correct.

Mr. Specter. Now, how many occasions were you a participant in an analysis of these various films which you have just described?

Mr. Shaneyfelt. Seven.