Mr. Ofstein. No, sir.
Mr. Jenner. Did he say anything about his observations that regarded, for example, an area in which he could see jet contrails, whether he would also find nearby, or even at a distance, any other military units?
Mr. Ofstein. No, sir; he said if he saw tank treads of tanks, that he wouldn't see aircraft or infantry units nearby, and that if he saw contrails, it was the same as the infantry units, that they just wouldn't intermingle them.
Mr. Jenner. Did he say anything to you about what had led him to make these observations?
Mr. Ofstein. Well, as I said earlier that he had never seen any contrails, he said, in the Minsk area and that he had been in Moscow and I presumed he had seen the type units that were stationed at Minsk and possibly at Moscow.
Mr. Jenner. Is there any work done at Jaggars-Chile-Stovall with the use of microdot?
Mr. Ofstein. No, sir.
Mr. Jenner. Do you know what a microdot is?
Mr. Ofstein. That was explained to me by Lee Oswald.
Mr. Jenner. Tell us about that.