Bow Fibula with a Spring| Pin
c. Mid 1st Century A.D. - Late Roman Period

One-piece construction was rapidly replaced by the much easier to manufacture two-piece construction in the middle of the 1st century A.D. The spring| with spring| pin remained in use until late in the Roman period, primarily in free Germania and the adjacent areas of the Roman provinces. The needle holders are not of uniform shape, which should be expected since the type was produced over a long period and large geographical area. The needle catches tend to be higher than other groups, some are tubular.

Fibula spring with axis pin (3.1 - 3.21), a sample of bow group B3 fibula (Riha group 3) from Riha, E. Die römischen Fibeln aus Augst und Kaiseraugst. (1979). PDF

Boelicke, U. Die Fibeln aus dem Areal der Colonia Ulpia Traiana. (Mainz, 2002). PDF
Riha, E. Die römischen Fibeln aus Augst und Kaiseraugst. (1979). PDF