In Italy, on the other hand, the fibula flourished exceedingly. The plain wire original, such as that given above (fig. 143) was soon elaborated. In the catch-plate it developed either horizontally, that is, by a beating out of the plate in a plane at right angles to that of the bow (No. =361=; fig. 148) or longitudinally, by the elongation of the catch-plate as in Nos. =362-3= (figs. 149-150). At the same time developments were taking place in the bow. It became larger (fig. 149), and then was hollowed out to save weight and material (fig. 150), and assumed forms known as leech-shaped and boat-shaped--and these threw out lateral knobs and ornaments (fig. 150), often of great elaboration. Alternatively, the bow makes a second convolution (fig. 148), and may be adorned with horn-like pairs of projections (No. =364=). [Illustration: FIG. 149.--ITALIAN FIBULA OF LEECH SHAPE (NO. 362). 1:2.] [Illustration: FIG. 150.--ITALIAN FIBULA (NO. 363). 1:2.] An independent form is chiefly found at Hallstatt, in cemeteries of the early European Iron Age. In this, two, or perhaps four, spiral coils make the whole decoration of the brooch (No. =365=, fig. 151). [Illustration: FIG. 151.--FIBULA OF _Hallstatt_ TYPE (NO. 365). 1:2.] [Illustration: FIG. 152.--FIBULA OF _La Tène_ TYPE (NO. 366). 1:2.] =The Bilateral form.=--The fibulae with the spring coiled on each side of the central bow came into use about 400 B.C., in the late Iron Age civilization, called the La Tène period, from the site on the Lake of Neufchatel, where the richest finds have been made. Together with the introduction of the double spring, there is a continued elongation of the catch-plate, which is turned up as in No. =366= (fig. 152) and attached to the bow as in No. =367= (fig. 153). Later its structural origin is forgotten, and it becomes a solid framework (No. =368=). [Illustration: FIG. 153.--FIBULA OF _La Tène_ PERIOD (NO. 367).] [Illustration: FIG. 154.--FIBULA FROM BELOW SHOWING THE BILATERAL SPRING (NO. 369).] [Illustration: FIG. 155.--ROMAN FIBULA OF CROSS-BOW SHAPE (NO. 370). 1:2.] [Illustration: FIG. 156.--ROMAN FIBULA (NO. 371). 1:2.]