PER QUESTA PORTA-IL XIV SETTEMBRE MDCCCLX LE MILIZIE DI VITTORIO EMANUELE II-SOSPIRATE VINDICI DELLE NEFANDE STRAGI DEL XX GIUGNO MDCCCLIX FRA SINCERE ACCLAMAZIONI DI POPOLO-S’INOLTRARONO A SUPERARE LA BREVE MA SANGUINOSA RESISTENZA CHE DAL FORTE PAOLINO-ANTICO NIDO DI TIRANNIA I MERCENARI PONTIFICI OPPOSERO ALLA LIBERAZIONE DELLA CITTA - DAL TRISTE DOMINIO DEI PAPI

IL MUNICIPIO-A RICORDO PERENNE DEL FAUSTO AVVENIMENTO-Q. M.P. IL XIV SETTEMBRE MDCCCXCVII

This is the gate through which the forces of Vittorio Emanuele II entered, to free the city from the rule of the church, after the killing of the inhabitants a year before by the forces of the Pope’s Swiss Guard.

Another sign nearby indicates this event Click for sign's details

The cover was photographed on the same day by the same photographer Click for a larger image

Translation of the text on the sign:
FOR THIS GATE - ON THE SEPTEMBER 14TH 1860 THE MILITIAS OF VICTOR EMANUEL II - LONG-LOOKED-AFTER THE HILLY MASSACRES OF THE TWENTIETH JUNE 14TH 1859 AMONG THE SINCERE ACCLAMATIONS OF THE PEOPLE - ADVANCED TO OVERCOME THE BRIEF BUT BLOODY RESISTANCE THAT THE PONTIFICAL MERCENARIES OPPOSED FROM THE FORT PAOLINO - AN ANCIENT NEST OF TYRANNY TO THE LIBERATION OF THE CITY - FROM THE SAD DOMINATION OF THE POPES

THE MUNICIPALITY - IN PERENNIAL REMEMBRANCE OF THE FAUSIC EVENT - Q. M.P. ON THE FOURTEENTH SEPTEMBER 14TH 1897