Mr. Eisenberg. Because it only gets the marks when you put it in the dispensing machine that you have in commercial establishments?

Mr. Cadigan. That is correct.

Mr. Eisenberg. Would it be common to have this type of dispensing machine in a home, by the way?

Mr. Cadigan. I doubt very much that you would find it in a home.

Mr. Eisenberg. Now, within a commercial establishment, are there more than one type of dispensing machines?

Mr. Cadigan. Oh, yes.

Mr. Eisenberg. Are there types that won't produce these lines at all?

Mr. Cadigan. Yes. I might point out, too, that the number of lines per inch will vary depending on the diameter of that wheel. In this particular instance I found that there were 24½ spaces, which would be 25 lines per inch, on both.

Mr. Eisenberg. I believe that is 142, the bag you are handling, and 677, the sample?

Mr. Cadigan. Yes; the markings on the manila tape in both 142 and 677 were the same. Now, at that time I also had——