Rule V. relates to the perfection of lettering. In the genuine the lettering is done by a first-class artist, whose particular branch it is to devote exclusively to that part of the work alone, and of course he arrives at a degree of perfection that could not be approached without such a sub-division of labor. In the genuine the letters are all exactly of the same size, where they _pretend_ to be, and on the same _angle_ and same size stroke, where they pretend to be. There are two great points to observe as regards lettering, viz. _neatness_ in form, and _uniformity_--the most important is UNIFORMITY. The want of uniformity in size, slant, distances apart, thickness of stroke, and any deviation from the line of the letters of a title, or the name of a bank for instance, will show counterfeit work. See the lettering in the word COUNTERFEIT in the steel-plate illustration compared with the lettering of the “UNIVERSAL DETECTOR,” “UNITED STATES,” &c. The engraved writing in the genuine, “Promise to pay on demand,” &c. is always beautifully done, the down strokes _uniform in size and slant_, and the hair strokes extremely fine, the curves _easy_ and _flowing_, while in counterfeits the down strokes are apt to point in different angles, and the hair strokes coarse, and the curves _stiff_ and defective. But perhaps the most important part of the 5th Rule, as it fails _invariably_, without exception, in all counterfeits, is the engravers’ names or “imprint,” which in the genuine is a _die_ cut in the most perfect manner, the letters very neat and perfect and perfectly _uniform_ in every respect. In counterfeits it is not a die, but letters cut in by hand, and never so perfect as the genuine, but clumsy, not uniform distances apart, nor in size and slant, and not all in a straight line, &c. RULE VI. SIGNATURES AND FILLING UP.