This post starts a series of posts on CD 133.1 telegraph bullets that were found between 1973 and 1975 on the Chicago Northwestern Railroad as it ran East out of Boone, Iowa toward Ames, Iowa. The first post shows yellow-green "The Electical Supply Co/ Chicago" bullet - this was a one of a kind find although four additional CD 133's in blue were recovered. Details are as follows:

CD-133.1 The Electrical Supply Co /Chicago (Front Skirt) - 25 (Top Dome Mold Number - Yellow Green (Microbubbles) - Measurements: 64 mm Wide x 89 mm Height.

The next post shows the yellow-green CD 133.1 vs. the best of the four Blue-Aqua CD 133.1 The Electrical Supply Co /Chicago found in Iowa [id=614293838].