This graphic is incredible but so's this illustration (the typography) from 1912. (Also, the whole story.)

https://www.wsj.com/articles/att-verizon-lead-cables-telecom-5e329f9

​What AT&T and Verizon Knew About Toxic Lead Cables

For decades, telecom companies have known that lead in their networks posed risks to workers and could leach into the environment

WSJ
@acookiecrumbles Those are great. While we're discussing telephone imagery, here's Rocco Morabito's 1967 photo taken in Jacksonville of a man saving an electrocuted coworker.
@rcade oh wow, thanks for sharing this, hadn’t seen it until now. Absolutely unbelievable shot.