For sale: tanks, good condition, some used during D-Day.

The Normandy Tank Museum is selling its entire collection at auction next month before closing its doors because it failed to attract enough visitors. The sale includes tanks, military vehicles, trucks, aircraft, and motorcycles, many of which have been restored to working order.

More than 40 armored vehicles, along with thousands of military items used during World War II and dozens of mannequins in full battle dress, will be sold on September 18 by Artcurial, a Paris-based luxury auction house. The sale will be held in Catz, a town a few kilometers from Normandy’s Utah beach, where the Allies landed to liberate German-occupied northwestern Europe in June 1944.

“We thought the museum would attract more people,” museum co-founder Stephane Nerrant said in a phone interview. “The terrorist attacks had a considerable impact on visitor attendance,” he said, declining to provide numbers. French refinery-workers strikes that caused fuel shortages in May and June nationwide also dented ticket sales, he said.