Looking at it again with different lighting, and considering that the symbol I thought was a worn 4 is probably a fascio, I still think the first two digits are 33.
Then, it would read 33 [fascio] AL.
I think that is therefore ARIMANO Lorenzo BRINGIATTI, Via Volturno, 17, VALENZA Registered 23/05/1935, out of business between 1955 and 1971.
I have a question about that fascio symbol. Are there variations of it? For example, does the axe head appear at the top or middle or even closer to the bottom of the bundle of rods in different versions? Does the axe head ever appear on the left, or is it always on the right?
Also, regarding the name: Is Arimano the surname of the goldsmith? And the given name is Lorenzo, but what about the name Bringiatti? That too appears to be a surname.
I will try to research these questions, and I appreciate any insight anyone can provide. Thank you so much again.