An EBay vendor has listed a sign from South Norton Avenue with an asking price of $500, stating that:

Elizabeth Short, the infamous Black Dahlia was found brutally murdered, severed in two, just down the street from where this sign was posted.

Street numbers in Los Angeles start at 1st Street, on the south side of City Hall, so 600 South Norton is at 6th Street. Which means that 39th Street is 3.6 miles away. Not “just down the street” even under the most generous interpretation. It’s just plain old flea market flimflam.