CAROLINGIANS. Louis 'le Pieux' (the Pious). As Emperor Louis I, 814-840. AR Denier (22.5mm, 1.73 g, 6h). Class 3. Unspecified (Dorestadt) mint. Struck 822-840. + HLVDOVVICVS IMP, cross pattée; pellets in quarters / XPISTIΛNΛ RELIGIO, temple façade. Cf. Grierson, Coins of Medieval Europe 90 (for type); Coupland, Money Group B; Depeyrot 1179; M&G –; MEC 1, –. Toned. EF.
From the Richard A. Jourdan Collection of Medieval European Coins. Ex CNG Inventory 725179 (April 2001).
With the introduction of the Temple Facade / CHRISTIANA RELIGIO type of Louis the Pious the Carolingian coinage achieved a remarkable homogeneity. The use of mint names were abandoned and numismatists have assigned particular coins to different mints based on die studies, analysis of style, and find data.