A new permanent exhibit at the Kalmar Nyckel Foundation, 1124 E. Seventh St., Wilmington, is paying homage to Wilmington’s industrial heritage — to the city that built 10,000 ships and 30,000 railcars.

The new exhibit, called “Wilmington – Industrial Powerhouse,” helps promote the Foundation’s educational mission of preserving and promoting the cultural and maritime heritage of Delaware and the Delaware Valley.

The new exhibit will open with a reception and ribbon-cutting ceremony from 5 to 7 p.m. June 21. Tickets are available by contacting the Kalmar Nyckel Foundation at 429-7447 or kalmarnyckel.org.

“Wilmington – Industrial Powerhouse” highlights 125 years of industrial production and four manufacturing plants, Harlan and Hollingsworth, Pusey and Jones, Jackson and Sharp, and the Dravo Corporation, and the workers who built 10,000 ships and 30,000 railcars between 1836 and 1950. The exhibit features artifacts, maps, historic photos, models and digital displays elaborating on the area’s rich history.

The Copeland Maritime Center is open to the public for tours, allowing visitors to learn about the original Kalmar Nyckel, which brought Swedish settlers to what would become modern-day Wilmington in 1638. The building also features the “Watercraft of the World” exhibit, which features a collection of 73 ship and boat models gathered from around the globe.

The center is available for self-guided tours from 2 to 4:30 p.m. Mondays through Fridays and from 10 a.m. to 2 p.m. Saturdays, as well as by appointment. Admission is free, but a suggested donation is $5.

For information or tickets, visit kalmarnyckel.org or call 429-7447.