(_a_) _Champlevé Enamel_, where the field (_champ_) or area to be occupied by each colour is dug out and removed (_levé_), so as to leave a very narrow band of metal at the level of the original surface to form the dividing line between the fields. (_b_) _Cloisonné Enamel_, where the divisions or partitions (_cloison_) between the fields consist of thin strips of metal bent into the required shape and fixed to the surface to be enamelled. All the enamels of the Late-Celtic period belong to the _champlevé_ kind. The colours used are bright red, yellow and blue, and the designs are more often curvilinear than not, like those on the repoussé metalwork. The patterns were probably traced on the surface of the metal to be decorated with a finely pointed instrument, and the hollows to receive the enamel dug out with a scooping tool, in the case of small work, or with a long thin chisel and a chaser’s hammer where the work was larger. [Illustration: CRUCIFORM HARNESS-MOUNTING OF BRONZE ENAMELLED. LOCALITY UNKNOWN; NOW IN THE BRITISH MUSEUM SCALE 1/1 LINEAR] [Illustration: BRONZE ENAMELLED HARNESS-MOUNTING FROM POLDEN HILL, SOMERSETSHIRE; NOW IN THE BRITISH MUSEUM SCALE ¾ LINEAR] The late Sir Wollaston Franks, than whom no better authority can be quoted, always maintained the Celtic origin of the art of enamelling in Western Europe, and gave the distinctive name of _opus Britannicum_ to the special kind of enamel which was produced in greater perfection by the Celts inhabiting the British Isles than by any other people. The art of enamelling in the purely Celtic style commenced before the arrival of the Romans in this country, and after continuing throughout the whole period of their occupation, survived for some centuries after their departure from our shores. There are, however, numerous enamels which, though very possibly of Celtic workmanship, are altogether Roman as far as the ornamental patterns upon them are concerned. Dr. Joseph Anderson has described an exquisitely enamelled patera of this kind found in Linlithgowshire, and now in the Museum of Antiquities of Edinburgh. He says of it:—[271] [271] “Notice of an enamelled cup or patera of bronze found in Linlithgowshire, recently purchased for the Museum,” in the _Proc. Ant. Scot._, vol. xix., p. 45.