Mr. Eisenberg. Did you take photographs of the test and suspect items?
Mr. Nicol. Yes; I did.
Mr. Eisenberg. Under the comparison microscope?
Mr. Nicol. Yes, sir.
Mr. Eisenberg. And have you brought those photographs with you?
Mr. Nicol. Yes, sir; I have.
I might say in passing that this was done in Philadelphia with equipment that I was not thoroughly conversant with, that is, a type that I have used, but each piece has some idiosyncrasy, and considering the time element I do not offer these as the best quality that could be produced under the circumstances.
Representative Ford. Does that make any difference in your judgment or opinion?
Mr. Nicol. No, sir; it doesn't, because my opinion is based upon a visual examination. That is, photography is not an integral part of arriving at the conclusion, except in one facet which I will discuss later.
Mr. Eisenberg. On that subject, have you testified in court on firearms identification?