.

The Curse of the Baskervilles.
"I have in my pocket a manuscript," said Dr.James Mortimer.
"I observed it as you entered the room," said Holmes.
"It is an old manuscript." "Early eighteenth century, unless it is a forgery." "How can you say that, sir ?" "You have presented an inch or two of it to my examination all the time that you have been talking.

It would be a poor expert who could not give the date of a document within a decade or so.

You may possibly have read my little monograph upon the subject.

I put that at 1730." "The exact date is 1742." Dr.Mortimer drew it from his breast-pocket.
"This family paper was committed to my care by Sir Charles Baskerville, whose sudden and tragic death some three months ago created so much excitement in Devonshire.