Mr. Cadigan. A series of little short marks right close together.
Mr. Murray. Oh, yes.
Mr. Dulles. And they run along about how far on this particular exhibit?
Mr. Cadigan. They run the whole length of the tape.
Mr. Murray. A comb design.
Mr. Eisenberg. Comb in the sense that it is a series of——
Mr. Eisenberg. Could you circle that on 677, and mark the portion "A"? Can you still make out the lines on Exhibit 640?
Mr. Cadigan. Oh, yes.
Mr. Eisenberg. Could you circle a portion of the lines on 640 and mark it—I am sorry, that is 142.