The following post show some of the more interesting insulators that were found on the Chicago Northwestern Railroad as it ran East out of Boone, Iowa. East of Boone, Iowa the major railroad towns included: Ames, Nevada, Colo, State Center, Marshalltown, Montour, Tama, Belle Plaine, Blairstown, Watkins, Norway, Fairfax, Cedar Rapids, Mount Vernon, etc. In the sections East between Boone and Ames, Iowa, I have previously posted on CD 133.1 and CD 133.4 early Hemingray telegraph insulators which were found very near Boone, IA. As the telegraph line moved 0.25 miles East out of Boone, the more uncommon insulator found included: CD 145 H.G. Co./Petticoat in SCA; CD 145 No Embossing Pennycuick; and CD 151 H.G. Co. /Petticoat in ice /near clear. Once the railroad telegraph line reached the West Central Coop grain complex, the telegraph lines had only CD 145, CD 145.2 and CD 133 Star insulators. This post shows the CD 151 H.G. Co. /Petticoat in a nice ice color. Details are as follows:

CD-151 H.G. Co. (Front Skirt) / Petticoat (Back Skirt) - Ice /Near Clear - Bubbles & Straw Marks - Measures: 88mm Wide x 104mm Height

Note, there were a number of CD 151 H.G. Co. used on the Chicago Northwestern RR. Most were various aqua and blue aqua colors; however, there were a few that were near clear as represented in the current post. I also found the CD 151 H.G. Co. in ice /near clear on the Chicago, Rock Island & Pacific RR which also ran East and West through Iowa [id=611700833]. I will post later on some interesting color found on this telegraph line.