This year, the Mack Trucks Historical Museum celebrates its 40th anniversary as a chronicler of Mack Trucks history.

Located in Allentown, Pennsylvania, the nonprofit museum is a 14,000-square-foot exhibit at the Mack Experience Center.

The museum welcomes approximately 10,000 visitors each year to view its collection of historic Mack trucks and its detailed archives.

“We not only preserve and catalog the Mack heritage, but we also communicate the importance of our vehicles to the functioning of the world,” said Doug Maney, curator and chief caretaker of the Mack Museum. “Each year, we answer more than 1,500 questions about Mack, from dealers looking to service an older truck to hobbyists asking about vehicle parts. It’s an honor to preserve Mack history by providing this information.”

To celebrate its 40th anniversary, the Mack Museum will be honored at the biennial Trucktoberfest at the Mack Experience Center in October.

On display are 30 operational vehicles that have been restored and preserved by a group of dedicated museum staff and volunteers. They include a 1909 Mack tourist bus that was used in both Chicago and New Orleans, and Megatron, the 2006 military truck from the 2011 film “Transformers: Dark of the Moon.”

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The museum also has more than 40 million pages of records detailing Mack’s history and its leading role in the development of the modern American truck.

Mack’s story is also told through numerous memorabilia on display at the museum, including a 20-foot-tall bulldog statue from Mack’s former headquarters in Allentown, Pennsylvania.

To curate this collection, Maney and his staff sort through thousands of donated Mack-themed items. Donation boxes often contain Mack drawings, photos or old emblems.

“Since its founding in 1900, Mack Trucks has been involved in everything from World War I to major infrastructure projects such as the construction of the Hoover Dam and the New York City subway system,” said David Galbraith, vice president, Global Brand and Marketing at Mack Trucks.

“We are proud that the Mack Museum presents all of these groundbreaking construction projects as well as Mack’s 124 years of work.”