Of course, it is understood that when the signature clerks are not examining checks they are studying the autograph books in order to familiarize themselves with the calligraphy of every customer. Each check, you must understand, passes through the hands of each clerk in turn, so that if one should pass a forgery or a "raised" draft it is very unlikely that the entire staff would do so. All these checks, of course, come through the clearing house, and if we should pass a forged draft and not find out our mistake before three o 'clock in the afternoon our bank would be held responsible. One of the commonest dodges adopted by the modern check-forger is to get a customer of some small country bank to introduce him to that institution as a likely depositor. On the recommendation of the friend (who is probably quite unaware that the acquaintance he made some few months ago is a "wrong'un") there is no difficulty in accepting their new client's check for £2000, and the following day, when the same customer calls and withdraws £100 to £500, as the case may be, he is politely handed the cash, and then, of course, loses no time in skipping the town. After the bogus customer's check has passed through the clearing house it is returned to the bank on which it has been drawn and the fraud is at once discovered.

Another part of a signature clerk's duties is to see that no checks are post-dated, as of course no drafts must be paid until they fall due. On occasions a careless man will post-date a check, but as a rule the mistake is purposely made. This spotting of post-dated checks, however, is the easiest part of a signature clerk's work, and it is very seldom that a check so dated escapes him. Then, again, we are often notified that payment on certain checks has been stopped, and the clerks have to be on the lookout for these, and it must be a very careless staff indeed that lets them slip by. We are held responsible for all checks passed after we have received notice to stop payment.

But it is very seldom now, owing to the cleverness of the experts, that any forged checks, "raised" checks, post-dated checks, or stopped checks pass the vigilant eyes of our staff without being detected, but when one does—well, although the signature clerks are not held monetarily responsible for the loss, it means a bad mark against them in the future, and they feel its effects next time promotions or "rises" are being handed out.

Altogether, though the work is interesting, and even fascinating in a way, the responsibilities are so great that the effect on the nerves is often very trying at times. One thing we are particular about, and that is to take no chances. If we have the slightest doubt about the genuineness of a check we at once communicate, either by telegraph, special messenger, or telephone, with the supposed drawer of the check, and in this way turn doubt into certainty. During the last three years not a single wrong check has passed our vigilant optics, and, though I say it who should not, I do not believe there is a cleverer set of experts any where than those who compose my staff.

[ CHAPTER XIII]

HOW TO DETERMINE AGE OF ANY WRITING

The Different Kinds of Ink Met With—Inks That Darken by Exposure to Sunlight and Air—Introduction of Aniline Colors to Determine the Age of Writings—An Almost Infallible Rule to Follow—To Determine Approximate Age of Ink Possible—The Ammonia System a Sure One—A Question of Great Interest to Bankers and Bank Employes—Thick Inks and Thin Inks—So-called Safety Inks That Are Not Safe—How to Restore Faded Inks—An Infallible Rule—Restoring Faded Writing—Restored by the Silk and Cotton System That Anyone Can Arrange—Danger of Exposing Restored Writing to the Sun.

The inks in common use over the United States at the present time, and for some years past, are not as numerous as one might be led to conclude. They are probably fifteen or at most twenty in all, including the most popular blue, red, magenta, and green inks. But among these there is a notable difference in character. Some are thick, heavy, and glossy, in character, and flow sluggishly from the pen. Few of these become much darker by standing. In this class will be found the copying inks and those in which a large quantity of gums or similar thickening agents are used.

Other inks are pale, limpid, and flow easily from the pen, and this class usually shows a notable darkening by exposure to sunlight and air. It will be unnecessary here to refer more particularly to the intermediate varieties or to discuss their various composition.

It should be, remembered here that in the last twenty years, or since the introduction into general commerce of aniline colors, which Hofmann discovered in 1856, these latter have been employed more and more in writing fluids; not only in mixtures of which they are the principal ingredients, but to a greater or less degree in all inks. Their presence, even in small quantity, in the gallo-tannate of iron and logwood inks can be generally detected by an iridescent and semi-metallic luster.