364-367 AD., Valentinian I, Siscia mint, Æ3, RIC 5a (ii) var.

Valentinian I, Siscia mint, officina 2, 364-367 AD.,
Æ3 (ø 18-19 mm / 1,94 g), bronze, axis about medal alignment ↑↑ (ca. 30°),
Obv.: D N VALENTIN/ • ANVS P F AVG , his pearl-diademed, draped and cuirassed bust right, irregular legend details - son buste diadémé, drapé et cuirassé à droite.
Rev.: GLORIA RO - MANORVM / • B SISC , emperor, wearing military dress, advancing right, head left, his left hand holding a labarum with chi-rho-monogram on the banner, right dragging captive - l'empereur avançant à droite portant le labarum et traînant un captif à genoux par les cheveux, • B SISC à l'exergue.
RIC IX, p. 140/146, no. 5a (C) signe ii var. (obverse legend details) ; LRBC 1275 ; Coh. 12 ; 190 pieces of RIC 5 on www.nummus-bible-database.com ; CATALOGUE DES MONNAIES DE VALENTINIEN I, p. 20, no. 179 ( 3 pieces var. (ii) from officina 2 ) .

The point in the obverse legend is actually the end of a needle in the emperor's headdress.
This detail appears at least since the reign of Constantius II.