Mr. Jenner.

What did he say, if anything, about units that were located in and about Minsk?

Mr. Ofstein.

I . The only thing he mentioned along that line was the military headquarters and to the best of my recollection, it was a secret police.

Mr. Jenner.

You mentioned in the is that what you mean by the secret police, the NVD?

Mr. Ofstein.

Yes, sir.

Mr. Jenner.

And, that they had a headquarters there in Minsk?

Mr. Ofstein.

Yes, sir.

Mr. Jenner.

Did he make any comment about the MVD?

Mr. Ofstein.

Only that they had inquired about him several times and that they didn't follow him around. He said they were somewhat like our own Federal Bureau of Investigation.

Mr. Jenner.

Did he ever make any comparison that was, you thought, an attempt at being invidious with respect to the FBI as against the MVD?

Mr. Ofstein.

No, sir; he just said that their operations were somewhat similar in checking out people they wanted to check on.

Mr. Jenner.

Other than that, did he ever say anything about the FBI?

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 Chiles-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.

Mr. Ofstein.

He asked me one day if I knew the term "microdot", and l told him, "no", I wasn't familiar with it and he told me that that was the method of taking a large area of type or a picture and .reducing it down to an extremely small size for condensing and for purposes, such as where you had a lot of type to photograph to confine them into a small area, and he said that that is the way spies sometimes sent messages and pictures of diagrams and so on, was to take a microdot photograph of it and place it under a stamp and send it. I presumed that he had either read this in a book or had some knowledge of it from somewhere, but where, I didn't know.

Mr. Jenner.

When did this conversation occur with respect to the termination of his employment?

Mr. Ofstein.

This was possibly 2 or 3 months before.

Mr. Jenner.

So, this was after the time that the 'Russian newspaper had shown up?

Mr. Ofstein.

I believe it was; yes, sir.

Mr. Jenner.

Was it after the time you learned that he married a Russian girl and brought her to this country?

Mr. Ofstein.

No, sir.

Mr. Jenner.

That occurred afterwards?

Mr. Ofstein.

Yes, sir.

Mr. Jenner.

What reaction did you have when Oswald talked about--raised the subject of microdots and their use or possible use in espionage?

Mr. Ofstein.

I just thought that as far as he was concerned, it was possibly another phase of photography and that he was interested in it. It has since, come up down at the company--the use of microdots and the different techniques,