Earlier this week we announced that CORE will be opening a new location on the Upper East Side in the spring, on the second and third floors of the historic brownstone at 673 Madison Avenue. New signage announcing CORE’s impending arrival will be going up soon, but as a little sneak preview for CORE Blog readers, above is a rendering of how we’ll be announcing ourselves to the neighborhood — and hiding the space from prying eyes until we’re ready to show it off.