Hello Guy, This Homeless Grapevine Newspaper sign image is from Wikipedia [1] which says the sign is at Lincoln Park, Tremont.
Question: is this your sign? It looks like it is on/near the corner - ring a bell?.
More on the Dirty Dealer's "journalistic" prostitution soon - prostitution which underlies the Dealers collapse.
Links:
[1] http://en.wikipedia.org/wiki/Homeless_Grapevine