According to something I read on line, it was an Italian clone of Colt SAA. Depending on its age and manufacturer, it may have had a transfer bar, in which case there is no way that revolver could have fired without pulling the trigger.
Yes, Pieta makes both the "traditional" replica of the Colt Single Action with firing pin mounted on the hammer and a "second generation" replica of the single action with the transfer bar in the frame. Here is the Pieta safety and instruction booklet for their single action revolvers. The first part is in Italian but the second part is in English. Scroll down for the English section. Well illustrated and comprehensive.
https://www.traditionsfirearms.com/...PF-1873%20Manual%205-2013_1406058505.pdfI have no idea which
variant was being used by Baldwin to kill Hutchins and wound Souza.
L.W.
