CD 135 [020] CHICAGO embossed CHI. INS. CO. PAT. OCT. 16. 1883. There is a single dot on the skirt and a number on the dome that is either a 1 or a 4 or just a dot. I can't quite make it out. Base is perfect. Diamond groove is just about perfect. The only damage to speak of is nibbling that goes around the top of the wire groove where the embossing is. I personally think this came from the factory that way and this kind of flaking along that ridge line is accepted. Priced @ $166.66 plus shipping. First email!