Penn Fruit Audobon was the first structure built at the mall site. The supermarket, designed by Victor Gruen, opened for business in October 1955. It included a small group of inline stores.
Photo from Progressive Architecture magazine

A pre-construction rendering shows how a completed BLACK HORSE PIKE CENTER would be configured. The open-air mall would be built adjacent to the existing Penn Fruit Audobon strip center. 

Drawing from E.J. Korvette, Incorporated Annual Report 1960

Construction commenced on the BLACK HORSE PIKE mall in October 1960. E.J. Korvette (a.k.a. Korvettes) was one of two BLACK HORSE PIKE anchors. The store, which covered 130,000 square feet on two levels, welcomed its first shoppers in August 1961. 

Drawing from E.J. Korvette, Incorporated