"That's so," bobbed the tramp with a grin.

"Where did you get it?"

"That don't go with the sale, but I didn't steal it."

"You found it, I suppose?" suggested Dave.

"Well, you might call it so." The man drew from his pocket a badge which was the exact counterpart of that worn by the young aviator.

"Let me have a look at it," said Dave.

"No, sir."

"Why not?"

"You can see what it is, can't you? I don't want to get into trouble, boss."

"I'm not going to get you into any trouble," declared Dave.