Just a shot!
Is it possible the name is Caesarina? That would make it a badged machine distributed by J Silberberg & Co, a German sewing machine distributor. The logo badge looks like it has a S, C and J on the brass badge, but that is not what the Silberberg logo, that I am familiar with, looks like! Maybe it was changed?
After the war, people tried to remove any name that would tie a sewing machine to Germany. Since it is not a drophead machine, I can't attribute the name being so light to handling the head each time the machine was lifted.