Common Rules of the Archconfraternity of the Most Holy Trinity of Pilgrims and Convalescents, with historical background and catalogue of pardons granted by pontiffs
As may be inferred from the form next to the frontispiece, a copy of these rules was handed out to new members of the confraternity when they joined. On 22 April 1875, the archconfraternity’s secretary gave his blessing to Mrs Lucia Piacentini becoming a member.
Cenni storici della ven. Arciconfraternita della santissima Trinità de' pelegrini e convalescenti di Roma con la Regola comune e col catalogo delle indulgenze concedute dai sommi pontefici,Roma 1862