Mr. Jenner. Or, do you sometimes use lead slugs?
Mr. Graef. Never.
Mr. Jenner. Of course, the customer would make a lead slug from the mat and then print it?
Mr. Graef. Yes. Or, have a plate made, for example, in offset printing from our negatives—he could burn in plates and which would run two colors. He could burn his black plate and he could burn his red plate, for example.
Mr. Jenner. Well, I got you to digress a little bit from telling us your teaching of Mr. Oswald from his gradual development or undevelopment?
Mr. Graef. Of course, Oswald was not the first one that has come into our department, because his wasn't an unusual case. He was just another employee among many whom I have trained during these years—through these years.
Mr. Jenner. Were there others you were training at this time?
Mr. Graef. No.
Mr. Jenner. Of substantially like experience?
Mr. Graef. No. There were others in various stages of training, but none who was starting from the very beginning, we'll say, so, of course, even though he had had—he said he had had experience in photography, we started from the very beginning because the papers that you ordinarily use in amateur photography are somewhat different from the papers that we use in our work. The film that you would use in amateur photography is different than the film that we use in our work, so we start from the beginning in every case and this was the situation with Lee Oswald.