Adam the first card shows King Umberto I the others depict Victor Emanual III. I have quite a few of the entire cards should you want any.They are pretty common and not expensive
They are not in Scott or Sassone Regular Catalog. (I have both). Here is where I go when I get stumped on Italy.
http://www.ibolli.it
(Use Chrome or Firefox, it works better) IF you dont know much italian, you can have chrome automatically flip to English if needed.
I found one of yours, listed under postal cards.(Cartoline postali) Look at different time periods of the Kingdom.
http://www.ibolli.it/php/em-italia-11789-Effigie%20di%20Umberto%20I.php
I have a number of these, they dont go for much. Some of them have nice cancels though.
