Original 1967 Houston business trade magazine vintage ad for the CULLEN CENTER, INC.  Main office was located 500 Jefferson Street, Suite 1700, Houston, Texas. Cullen Center is 500 Jefferson Building and Hotel America. Now were glad we've filled and were really ready for more on our adjoining four blocks if you're ready for us to build. Well start a new one soon. ​This old dated one page real estate magazine advertisement would display beautifully matted and framed.