Expert: Bob Berry - 10/31/2011

Question
I will attempt to attach a snapshot.The one on the left has no markings and hhas no ridge going around the wire groone.the one in the midddle has the H on the doam  front skirt is patent over DEC.19 1871 . the back skirt a #3 on it. the one on the right has the small x on the doam a slightly flared skirt and no other markings..What is a grand Canyon style vs a  canadian style?

Answer
Hi John --

The picture is very helpful -- From left to right:

Your first insulator is a CD 126.3 that although unmarked is attributed to the American Insulator Co. - This is a tougher style with a $100 or so value.  

Your middle insulator is a CD 133.1 in light blue-aqua -- This is an early Hemingray style that I'd value at $15 or so.

Your third insulator is also a CD 126.3 made by the American Insulator Co., but a different mold style.  These are a little more common than the first one with a $50 value.

A grand canyon style of CD 145 is an unmarked version made by the Western Flint Glass Co. of Denver -- here is a link to help there:

http://www.nia.org/general/cd_text/cd145.htm

You can see on the third row a "Grand Canyon" example -- it has a somewhat unique shape.

         Hope this helps -- Thanks, --Bob