348-350 AD., Constans, Arelate mint, Æ3, RIC 106.

Constans, Arelate (Arles) mint, officina 2, 348-350 AD.,
Æ3 (Maiorina?, Centenionalis?) (19-21 mm / 3,51 g), bronze, axes about coin alignment ↑↓ (170°),
Obv.: D N CONSTA - NS P F A[VG] , pearl-diademed, draped and cuirassed bust of Constans left, holding globe in right hand - buste diadémé, drapé et cuirassé à gauche, portant un globe.
Rev.: FEL TEMP REPAR - ATIO / S ARL , helmeted soldier, advancing right, head left, spear in left hand; with right hand, leading small bare-headed barbarian from hut beneath tree. Spear points upwards, it´s butt between the soldier and the barbarian - soldat debout à gauche, casqué et portant une lance, tirant un jeune barbare hors de sa hutte couverte par un arbre, S ARL à l’exergue.
RIC VIII, 210, 106 (R2) ; Ferrando II n° 1238 (C1) ; LRBC 401 (corr.) ; Coh. - .

In AD. 342 - under Constans - the Franks were taken over the Rhine and settled in Toxandria (a region between the Meuse and the Scheldt rivers in the Netherlands and Belgium). This was a peaceful act done by negotiations and the Franks had to fight for the Romans.

"moonmoth" on February 01, 2010 and August 20, 2009 about hut coins from Arelate: "The western mints are the hardest to find, Arelate mint (Arles) in particular. ". "In that market, it's common to come across variations from the RIC tables from the eastern mints, but much less so from the western ones. In fact it's not that easy to find even the listed coins from Arelate - they are all graded R2 or R3 - but they do appear now and then."
http://www.forumancientcoins.com/board/index.php?topic=59967.0
http://www.forumancientcoins.com/board/index.php?topic=55721.msg346233#msg346233