Mr. DULLES. You used the same boxes, did you, that the assassin had used? Mr. SHANEYFELT. No; I did not. Mr. SPECTER. Were those boxes used by Mr. Frazier. Mr. SHANEYFELT. They were used by Mr. Frazier and used in making the measurements. I had to use a tripod because of the weight of the camera and placed the elevation of the rifle at an approximate height in a position as though the boxes were there. Mr. SPECTER. Was Mr. Frazier present at the time you positioned the rifle on the tripod? Mr. SHANEYFELT. Yes; he was. Mr. SPECTER. Did he assist in describing for you or did you have an opportunity to observe the way he held a rifle to ascertain the approximate position of the rifle at that time? Mr. SHANEYFELT. That is correct. Mr. SPECTER. May it please the Commission, we will, with Mr. Frazier, indicate, the reasons he held the rifle in the way he did to approximate the way we believe it was held at the time of the assassination. What is the next position which has been depicted on one of your exhibits, please. Mr. SHANEYFELT. The next position that we established during the reenactment is frame 161 of the Zapruder motion picture film. Mr. SPECTER. Permit me to mark that if you would as Commission Exhibit No. 888. (Commission Exhibit No. 888 was marked for identification.) Mr. SHANEYFELT. This position which has been designated by us as frame 161 and as Commission Exhibit No. 888, was established as the last position that the car could be in where the rifleman in the window could get a clear shot of the President in the car before the car went under the covering of the tree. Mr. SPECTER. How was that position located, from the ground or from the sixth floor? Mr. SHANEYFELT. This was positioned by Mr. Frazier in the sixth floor window. In addition we knew from the Zapruder photographs the relative position of the car in the street as related to the curb and the guidelines or the lane lines. Following those lane lines we then moved the car down to a point where Mr. Frazier radioed to us that it was the last point at which he could get a clear shot and we stopped the car there. Mr. SPECTER. How did you then select the appropriate frame from the Zapruder film? Mr. SHANEYFELT. After Mr. Frazier had stationed the car at this point, I then went to the position of Mr. Zapruder. Based on his motion pictures, a comparison of the photograph that we made with the photograph from the film, I was able to state that because of the relative position of the car in the street and in relation to other objects in the background, it corresponded to frame 161 of the motion picture. Mr. SPECTER. Do you have on Exhibit No. 888 a reproduction of frame 161?