Mr. Ofstein. Strictly camera work.

Mr. Jenner. Did your work extend beyond the taking of the photographic imprint on a film?

Mr. Ofstein. Yes, sir; we were taught also to set filmotype, which is a process of writing out on a sheet of paper from a film negative that's already been put into a roll and making words and sentences and so on and photographing that, also, distortion of negatives and different types of copy.

Mr. Jenner. What do you do to the distortion work?

Mr. Ofstein. Well, they have different processes—they have what they call perspective, which entails turning the copy board and the film mounting board at different angles from each other to make one end look smaller going off at a distance, and they have what is known as stretches and squats, which entails putting mirrors before the copy board to make a character or letter taller or smaller and doing circles.

Mr. Jenner. They would have a magnifying or contracting mirror?

Mr. Ofstein. Yes, sir; and circles which is done with a circle device using a film positive to curve a straight line around and, of course, they have their different reproduction effects, such as the screens and the halftones.

Mr. Jenner. Do you know whether this company has done any confidential or secret work for any agency of the United States?

Mr. Ofstein. I don't know the nature of the classification. I do know that they do work for the U.S. Government.

Mr. Jenner. Have you ever participated in any of that work?