Pirates of the Air.

The proprietor of the Crowing Rooster Inn was a bad man, but he went one too many when he stole the airship model from the War Department, for they were on his trail immediately. The head waitress discovered the workshop where the proprietor was having the model duplicated and she was bribed not to say anything about what she saw. She started out with the bribe money to buy some gewgaws for herself, but she got in the road of a passing auto. Unfortunately, the auto contained the young Secret Service agent.