Italian carcano M91 marking

[Ced1942]

Question:
How do you know it is a 1919 refurb? What does that 'stamp' look like?

I dont have any picture on hand but the cartouche stamped on the stock put it in Rome in 1919

Source i used to ID the stamp
https://gunsmagazine.com/web-blast-italys-mannlicher-carcano/