Thank you, Ohio Star. I was sure those had something to do with oiling because of their placement, but was puzzled as to how to apply the oil. Oh, yes, she proudly says "Made in Italy' on the post. The BF would predate the BU, plus mine is not a zigzag machine. Do you know how old yours is? I am aware of the clearance isssue as my go to machine is an Elna SU made in Switzerland back when they were doing it right, too.
When the Necchi sews as perfect as I know she will, I am going to sell the Singer 128. I don't need an overabundance of sewing machines.