Mack AC Bulldog Fire Truck

A Mack AC set up as fire apparatus, on show at the America on Wheels museum in Allentown, Pennsylvania, Mack's hometown. The blunt, sloping hood is the reason for the most famous nickname in trucking: British soldiers in World War I called the AC the Bulldog for its looks and toughness, and in 1922 Mack adopted the bulldog as its emblem. Every chrome bulldog on a Mack fire engine since traces back to trucks like this.