Mr. MURRAY. Comb or rake.
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.
Mr. CADIGAN. I have marked it.
Mr. EISENBERG. Mr. Dulles, would you care to look at it?
Mr. DULLES. And--oh, yes--and they go over a good deal further than
your circle?
Mr. CADIGAN. Yes, sir.
Mr. DULLES. They run right across.
Mr. CADIGAN. I might explain that these are made by a wheel in the
paper-tape dispenser. [Referring to an object in the room.] It is
not quite this size, but it is similar to this and it has horizontal
markings running all around the wheel.
As you pull the operating handle that pulls the paper tape from the
roll through the machine and over the wetting brush, the wheel, in the
process leaves these markings on the tape.
Mr. EISENBERG. Excuse me, Mr. Cadigan, would this be in the type
of tape dispenser which is operated not merely by a handle--by a
handpull--to the tape from the dispenser, but is operated--that is
operated by a lever?
Mr. CADIGAN. Yes; a lever, a handle.
Mr. EISENBERG. And a given quantity of tape is dispensed, which you can
cut off or not as you choose--if you want to, you can pull some more
tape and cut it off, is that correct?
Mr. CADIGAN. That is correct.
Mr. EISENBERG. And this wheel, as I understand it, when you pull the
lever this wheel forces the paper out?
Mr. CADIGAN. It turns, and it is really pulling the paper from the roll
and pushing it out from the slot.
Mr. EISENBERG. That has a slight knurl which grasps the paper?
Mr. CADIGAN. It has a slight ridge all around it which is the cause of
these marks on the paper tape.
Mr. EISENBERG. Okay.