Italy 1863, Edition De LA Rue, 5c. Inverted Crown? And Argentina Error?

please help,
rare? Or is it common for Italien stamps from that period?
I cannot find anything on this particular stamp/inverted watermark
i know the stamp is in bad condition.

Argentina, inca brigde; 1971,SN 889,.. I think.
the dot above number 1, I found interesting. And again can not seem to find anything similar.

looking forward to get some more info

Hi Karoliens. I can not say anything about the Italian stamp, but the one from Argentina is probably not an error. For it to be an error it should occur on more than one stamp, and I guess this one is just an oddity. Most likely a small piece of paper was stuck to the plate during printing.
However, it would still be a nice addition to any collection!

Peter

The Italian stamp appears to be Scott # 28, 2007 catalog value $3. There is a remote possibility that it is # 28a, with an inverted watermark, 2007 catalog value $100. But your copy is in rather poor condition, with some tears, corners missing, short perf teeth, etc. So it would be worth only a small fraction of the catalog value, if anything.

Thank you so much, Peter & ekbustad :-)

I def realise in wich sad condition the stamp is, most of my italian ones btw.
grandpa started collecting then my father did an effort, but apparently gave up. Now, my turn, and I like it alot. emotional value is huge for me.
started sorting and getting to know, one by one, more about the amazing world of philately

I just got excited when I saw the inverted crown. :-)
i have heaps of inverted wmk s on my britain stamps, but apparently very normal.

thanks again.