https://www.antiquers.com/threads/large-italian-vase-lion-head-handles-anyone-know-who-made-it.2134/

A little confused by your pitcher !! Found nothing under that spelling but several links turned up as Artini !! Scroll down on the link above for more information !! The item pictured is not his but a similar one !! Sgraffito style which litterally means scratched design !! Your pitcher is very much in his style and others I saw were signed similarly !!
What I wonder is why the “i” was left off !! Possibly signed by one of the workers and not Artini is a possibility and is common !! Just put Artini Pottery, in your search engine and you should see several of his works !!