Senator Cooper. Would these changes have required the assistance at the time of another person——
Mr. Cole. I think not.
Senator Cooper. Or could they be accomplished by one person?
Mr. Cole. One person could easily do it.
Senator Cooper. Thank you.
Mr. Eisenberg. Now on these questions which Senator Cooper has been asking, I ask you to refer back to Exhibit 800, consisting of a group of other negatives not related to the selective-service card, and ask you whether those negatives bear any evidence of opaquing and similar techniques as were used in the creation of Exhibit 795?
Mr. Cole. They do. All of them show evidence of opaquing, that is, touching out certain information, letting other information come through.
Mr. Eisenberg. Do you think this might have constituted sufficient practice to produce the 795 result?
Mr. Cole. Yes; I think so.
Senator Cooper. Would it have been necessary for a person making these changes to have had for his use any kind of special equipment, or what kind of equipment would be required to make these changes?