"Fremont has one like it.
Where did you get it?
It looks new." "It is new," Nestor went on.

"It looks as if it had been made to order recently.

Now, whoever made it did not get it exactly right at first, and was obliged to file it down.

I have known night watchmen to make keys." "An old trick," admitted Frank.

"Well, let us take it for granted that Scoby was not permitted to carry a key and that he had one made, for some purpose of his own.