Nina Rappaport, a Manhattan artist with Philadelphia roots, opens her Philadelphia manufacturing photography and film exhibit Friday. The exhibit highlights stories behind Philadelphia's rich history in manufacturing. Philadelphia, once known as the "Workshop of the World," is still alive with factories, Rappaport discovered.

A Worker's Lunch Box, which opens Friday at 5 p.m. at the Slought Gallery at the University of Pennsylvania, is a multimedia installation presenting filmed interviews conducted with factory workers in Philadelphia and is part of her long-term project, the Vertical Urban Factory. In that project, which also resulted in a book, she explores the impact and significance of urban manufacturing and its architectural and social ramifications as part of a deeper interest in how things are made and who makes them.

The exhibit runs through July 21.