<p>Two series of walls, one dating to the Republican period, the other possibly to the Augustan era, were recovered during recent excavations inside the *“Arcus Dolabellae et Silani” near the present-day Piazza Celimontana (Pavolini). The earliest walls on the site are built in <i>opus quasi reticulatum</i>, and thus may date to <i>c</i>. 125-75 B.C.; one was unearthed in 1977-82, the other reported seen in 1908 (Pavolini 107, 282). The N–S orientation of one wall parallels the eventual course of the so-called <i>vicus Capitis Africae</i>, and suggests to the excavators that a street may have run in the area as early as the Republican period, yet they cautiously recall that the structure of the region was radically altered between the Republic and the early-Imperial period (Pavolini 282, 27). The second set of walls on the site is built of <i>opus mixtum</i>, and dated to the reign of Augustus by the characteristic cement employed (330); these walls follow the same N–S orientation as the Republican <i>opus quasi reticulatum</i> ones, and the excavators once again postulate that these flanked a street, perhaps even serving to limit the roadway itself (Pavolini 113-14: again, noting the limited data and possibility that the street was not affiliated with the <i>vicus Capitis Africae</i> but rather a nameless road). In 1893, a group of similar <i>opus mixtum</i> walls was recovered in the immediate vicinity along with an <i>opus spicatum</i> pavement and numerous fragments of bronze vessels, which suggest that in antiquity a metalworking facility stood on the site (Pavolini 41 n.123, 93, 282: also called reticulate walls: 93).</p>