Missing the time I spent in Mexico City, I took a street view tour of a few of the old neighborhoods like Tepito and Garibaldi, and found a lot of great sign painting, graffiti, and advertising. Screen Shots and Google Street View. Note the 2 photos from different angles of the same wall, one with the outlines done, and the next with the whole wall complete.
Utah and Ether are the Best Duo in Graffiti today. Great style, legible letters, matching schemes and great spots. Keep it up MUL. More on UtahEther.com
Baseball Team Felt Pennants are such a good place to dig around for vintage american typography and style. Here are a few that I found on Vintage Sports Shoppe. They are for sale on the website, as well as a lot more vintage collectables, check it out.