The Old Coca Cola Building in Marietta

This used to be the Coca Cola Bottling Company in Marietta.  It was located o Roswell Street across from the National Cemetery (foreground).  We lived about 4 blocks away in the Clay Homes.  I was preschool age. My Daddy and I would take my red wagon and pull it to the Coke building and purchase a case of Cokes.  I don't remember but I bet we carried the Coke empty bottles with us to trade with.    I did not think of it until  just now when I looked at this picture again.  How did we get that wagon up and down two flights of concrete stairs with 48 bottles?

Maybe we walked up Coryell Street, which was the street beside it on the north side and went in the back.