Mr. Specter. And why did you start with frame 171?
Mr. Shaneyfelt. This is the frame that the slides start from. This was an arbitrary frame number that was decided on as being far enough back to include the area that we wanted to study.
Mr. Specter. Is that a frame where President Kennedy comes into full view after the motorcade turns left off of Houston onto Elm Street?
Mr. Shaneyfelt. Yes, yes.
Mr. Specter. And how was the ending point of that frame sequence, being No. 334, fixed?
Mr. Shaneyfelt. It was fixed as several frames past the shot that hit the President in the head. Frame 313 is the frame showing the shot to the President's head, and it ends at 334.
Mr. Specter. Are there any other photographs in that album in addition to the Zapruder frames?
Mr. Shaneyfelt. Yes; there are. There are six photographs selected at random from the Nix film, including frame 24, which is a frame depicting the shot to the head of the President, and there are three photographs picked at random from the Muchmore film, including frame 42, which is the frame depicting the head shot. These are the pictures that were used in establishing the location of the Nix and Muchmore cameras on location in Dallas. Frame 10, which is the first one of the Nix series, is the one showing Mr. Zapruder standing on the projection.
Mr. Specter. And where was the viewing of the films and slides undertaken?
Mr. Shaneyfelt. They have been viewed here at the Commission—all those in addition to the ones I have made personally in the FBI Laboratory.