Most digital cameras will have a macro function (look for little flower symbol), but if yours doesn't, try taking a pic through a loupe or other magnifying lens, or perhaps a drawing might help. As it is, even enlarging and manipulating your current pics doesn't help much, and since individual perception differs, verbal descriptions of what the marks look like to you might be entirely off-base. What does seem clear is that your last picture shows 20th century Italian marks, hard to tell, but appears to be Fascist era (1934-44).
~Cheryl
Italian Hallmarks 