My friend was hiking along the former Chicago & Great Western and he found buried where the old code lines use to be and found an olive green shard of a insulator that were not sure about what it is. I'm thinking its a baby signal but does anyone know?! And he found this CD 133 CREB laying out in the open next to a near modern code line that was still up! Sad the top was busted off but still legible to read. But if anyone knows the olive green shard let me know I'd appreciate it!