CD 135 [010] (Base) CHICAGO INSULATING CO./PAT OCT 16 1883. (F-Skirt) 3 dots stacked vertically. I personally have not seen this configuration before. I've looked this one over closely and can see no damage. I will call it VVVNM to play it safe. Its a nice blue example and shows up less frequently than the shoulder embossed one does. Price $70.00 plus shipping. PayPal welcomed using the Family and Friends no fee option. Other forms of payment fine as well. First email as always!