This is the rarest forestry insulator. It is the one made base on the 1889 patent assigned to E. S. Greeley & Co. and sold in their catalog and was called the "VICTOR". The link to the patent is http://reference.insulators.info/patents/detail/?patent=U-403491. It is lightly embossed on the flat side of each half. Top side says VICTOR and below that is the patent date on two lines: PAT. MAY / 14 89. Does anyone else have one of these? I got this one from Jack Tod over 20 years ago. If you view the larger original image you should be able to see the embossed marking. [id=231109101]