I have a Great Eastern's Rebuilt Singer Machine. It has a dark Chocolate brown crinkle on it. Singer SN dates 1918. Person I got it from said her mother bought it about 1945. There is a chip in the brown crinkle on the edge and it is black underneath. Mine is froze up. I will wait until after the holidays to tackle it. I think it is just gunked up with poor oil. Good to see someone else has a rebuilt.