Mr. Ball. Now, what serial number did the FBI give you?

Mr. Michaelis. V, as in victory, 510210-65248.

Mr. Ball. Now, those two numbers signify what?

Mr. Michaelis. The first number, V510210, is commonly described as the butt number, while the second number, 65248, usually is described as the crane number.

Mr. Ball. Now, the serial numbers are stamped where on the gun?

Mr. Michaelis. As mentioned before, the first number is on the butt of the gun.

Mr. Ball. I see.

Mr. Michaelis. And also it appears on the lower part of the barrel.

Furthermore, it appears also on the outside rim of the cylinder of the gun. In other words, the first number, 510210, appears three times on the gun.

Mr. Ball. And that is usually known as the serial number of the gun; is that right?