From its beginning, the Market was largely used as a produce and foodstuff shopping center, with various grocers of such goods as eggs, cheese, and bread lining its inside walls. Digging performed for expansion of the market in the late 1970s uncovered evidence of animal bones, suggesting that butchering work was done on-site. In addition, street vendors took up space outside the building in its plazas and against its outside walls. Some surviving signs of early food and supplies merchants hang today in the upstairs seating hall.