ITALY. Stato Pontificio. Gregorio XV, 1621-1623. Doppia ND, Roma. Obv. GREGORIV - XV PONT M. Coat of arms. Rev. PRÆSIDIVM - SVB TVVM / RO-MA. Madonna within rays. Muntoni 4; Fr. 112. AU. 6.63 g. - VF-XF
Ex. Christie's Milan live auction 2532, 29-30 November 2011, lot 185.