Here is the back embossing on the big spool LRI. This LRI may have been designed in a large size to hold a star type lightning rod and its metal couplings. The standard star rod couplings are about 1 inch in diameter, just fitting inside of the 1 1/8" diameter hole in this LRI. The embossing on the reverse side is: St. LOUIS MO./ No 1 The color is close in the photo. It is a nice blue-aqua tone.