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- Hoover Dam Construction Site, 1933 - Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.

- April 01, 1933
- Collections - Artifact
Hoover Dam Construction Site, 1933
Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.
- Mack Model AC Dump Truck and Power Shovel at Hoover Dam Construction Site, November 1933 - Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.

- November 01, 1933
- Collections - Artifact
Mack Model AC Dump Truck and Power Shovel at Hoover Dam Construction Site, November 1933
Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.
- Mack Model AC Dump Truck and Marion Electric Shovel at Hoover Dam Construction Site, 1933 - Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.

- April 01, 1933
- Collections - Artifact
Mack Model AC Dump Truck and Marion Electric Shovel at Hoover Dam Construction Site, 1933
Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.
- Mining Shovel and Dump Truck -

- Collections - Artifact
Mining Shovel and Dump Truck
- Mack Truck Model AC Truck Carrying Workers to Hoover Dam Construction Site, October 1933 - Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.

- October 01, 1933
- Collections - Artifact
Mack Truck Model AC Truck Carrying Workers to Hoover Dam Construction Site, October 1933
Founded in Brooklyn, New York, in 1900, Mack Brothers Company relocated to Allentown, Pennsylvania, five years later. In 1922, the company renamed itself Mack Trucks and chose a bulldog as its mascot. Mack-built trucks were widely used in the construction of Hoover Dam, located on the Colorado River. Work on the dam started in 1931 and was completed in 1936.