This photo was labeled "Walking Streetcar."  The top lettering
reads "Bayou Bridge & City Park," and the bottom, "N.O.C.R.R.
Co.," which would be the New Orleans Crescent Rail Road Co.  
This was taken between 1900 and 1920.
Early Streetcars
This photo was labeled "First Streetcar,"
but I don't know if that's accurate.
Description reads "Street railroad car in New Orleans, 1855"