Lithographed in a greasy-looking black ink, on greyish-white paper. A number of faint pink lines cross the stamp below the impression; in some cases vertically, and in others horizontally. These lines are placed in a peculiar way—two and one—that is to say, first two lines close together, then one line a little apart, then two lines close together again, &c. This peculiarity in the burelé is a good test. The five square dots which form the cross in the left upper corner are quite distinct from each other. There are eight fine black lines running the top of the stamp, behind the word ZURICH, not counting the two thick lines above and below the word. In some copies the eighth line is very difficult to see, as it almost touches the thick line under ZURICH; but it is there nevertheless. There are also eight lines on the lower label, containing the words CANTONAL-TAXE, and these are easier to count than the others. The inner curl of the body of the 6 does not stop short when it reaches the inside of the curve, but runs down by the side of the upstroke halfway to the bottom again. This is another good test. The next test, which is a very trustworthy one, is rather difficult to explain without diagrams, but I will do my best to put it clearly. The groundwork of the stamp is formed by thin black lines, in sets of four, crossing each other obliquely. The arrangement of these lines differs in each of the types, but fortunately the forgeries do not agree with any type.