“The term containing its own means of ignition, as applied to ammunition, means having an arrangement, whether attached to it or forming part of it, which is adapted to explode or fire it by friction or percussion.
“This class is in 3 divisions, namely—
“Division 1: This division consists of percussion caps, railway fog signals, safety cartridges, safety fuses, and other devices of a similar nature not capable of explosion en masse.
“Division 2: Any ammunition which does not contain its own means of ignition and is not included in division 1.
“Division 3: Any ammunition which contains its own means of ignition and is not included in division 1.”