A series of these purple masked crusaders have been showing up in clusters on the streets of Los Angeles recently. Titled cryptically with a HELP, this has the looks of the start of a street campaign. We have no details for you yet, but what we do have are several of these signed posters to giveaway to some of our readers. Just leave a comment as to which artist you think is behind these works and the first ones to get the answer correctly will have these mailed out to you next month.

More photos after the jump…