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I don't recognize it but immediately thought of a couple in the SignFonts collection. That didn't turn out to be the case so I would suggest you look through the fonts at Letterheadfonts.com and those at Signdna.com.
Looks like a modified version of ITC Kabel (bold or ultra) to me. Obviously the "S" is different, and some other non-standard oddities are visible in the sample. My hunch is this lettering was hand-created/modified, either in the computer or put down on the finished sample.