The Daily Worker's front page explodes with a bombshell confession: "SACCO, VANZETTI INNOCENT!" dominates the headlines as the controversial case continues to grip America. Meanwhile, industrial horror unfolds in Gary, Indiana, where a steel mill explosion killed 20-30 workers after a foreman ignored safety warnings and cranked steam pressure from the safe limit of 4,300 pounds up to a deadly 5,600 pounds. The carnage was so severe that "parts of bodies were found all over the place," yet the investigation will be led by the very undertaker-mayor who's in the steel trust's pocket. In Chicago, labor struggles continue as garment worker Mrs. Vanda Kaleto enters Cook County jail with her seven-month-old baby to serve 15 days for strike activity, while in France, political chaos erupts as Premier Briand fails to form a coalition government amid the franc's collapse.

This June 1926 front page captures America at a crossroads between industrial might and worker rights. The Sacco and Vanzetti case had become an international symbol of American injustice, while Gary's steel mills represented the brutal reality of unregulated capitalism in the Roaring Twenties. The U.S. Steel Corporation's Gary plant employed 12,000 workers in what The Daily Worker calls an "open shop hell" — part of the fierce battle between organized labor and big business that would define the era. With industrial accidents claiming lives daily and corporations wielding near-feudal power over entire cities, these stories illuminate the dark underside of 1920s prosperity.

• The Daily Worker was serializing Upton Sinclair's novel 'Oil' — this would later become the basis for the 2007 Oscar-winning film 'There Will Be Blood' starring Daniel Day-Lewis
• Steel workers in Gary were packed '150 or more' into streetcars after their shifts, still covered in grime and sweat, making themselves 'obnoxious to other passengers'
• Common laborers doing the hardest work in the steel mills earned just 45 cents an hour, but if they made more than $5.50-$6 per day on tonnage rates, the company would cut their pay
• The Illinois Steel plant in Gary was built on bridges over water with 'heavy company police guard' watching that 'no one except the slaves get into the plant'
• Mrs. Kaleto was sentenced by 'Injunction Judge' Denis E. Sullivan for her role in the 'International Toadies' Garment Workers' 1924 strike' — apparently a typo for 'Ladies'

• The Pennsylvania Senate race mentioned here involved over $2 million in spending — equivalent to roughly $30 million today, making it one of the most expensive political campaigns of the 1920s
• Gary, Indiana was literally built by U.S. Steel in 1906 as a company town and named after company chairman Elbert Henry Gary — it represented the pinnacle of corporate control over American workers' lives
• Congressman Underhill's claim that the Sacco-Vanzetti protests were 'probably backed by Soviet Russia' reflects the Red Scare paranoia of the 1920s, when any labor activism was suspected of Communist influence
• The Amalgamated Clothing Workers' cooperative apartment building mentioned would become a model for worker housing — average rent of $12.50 per room would be about $190 today
• The franc's collapse that toppled the French government was part of the currency instability that plagued Europe throughout the 1920s, setting the stage for the economic chaos that would culminate in the Great Depression