It is, however, not unusual to see a faked piece of Sèvres imitating the work of the end of the eighteenth century wrongly marked as to date, the faker having evidently copied the mark from an original, unaware that it represented a date as well. This incredible ignorance can only be explained by the fact that many of these clever imitators, are artists altogether unacquainted with any information outside their imitative art. There are also other difficulties in the imitation of Sèvres and its marks, more especially the pieces of the above series, of which the faker appears to be unaware. Beside the factory mark, in the alphabet series particularly, there is always the special mark of the artist who did the decoration. These marks are generally not very conspicuous, initials, dots, lines, etc., and belong to specialists, miniature portrait painters, landscapists or simple decorators. By copying the old marks mechanically without knowing the information carried by the artist’s initials or marks, the faker is liable to attribute a piece of faked landscape painting to a portraitist and vice versa. Errors of this kind are more common than is generally supposed. In faked china there is no question of patina or devices by which to confer an appearance of age to the piece, nor of artificial breakages for, by a freak of connoisseurship and contrary to faience, repaired china has lost in a great many cases all artistic and monetary value. We now turn to glassware and enamels as bearing a certain affinity in the domain of faked art and antiquities with the glazed pottery already illustrated. The museum of Saint-Germain contains specimens of faked Roman glass with iridescent effect produced by the queer scheme of sticking fish scales to one side, which as every one knows are iridescent. A most naïve form of faking to which later progress in the grand and artistic profession of duping unwise collectors hardly renders it necessary for imitators to have recourse. Phœnician glass, the little scent bottles, the so-called lachrymatories or tear-bottles, furnish a large source of profit to the faker. They do not command high prices, and appeal to the less fastidious class of collectors, tourists, and are sure of finding purchasers. Interment in earth or manure gives the desired iridescent quality to the glass in time. From these antique types we will proceed to others of more recent times which demand more care and skill to imitate, not so much on account of the art as the peculiar defects of certain kinds. While Cologne distinguishes herself with imitations of specimens of old glass, the so-called product of excavation, and other cities of Germany reproduce old national types, Italy has revived old Murano with a certain amount of success, as well as various kinds of Quattrocento and later samples.