CPHA, 1977 Year 1977 Month April Day 28 Rights Held By Ann Arbor District Library Copyright Creative Commons (Attribution, Non-Commercial, Share-alike) Ann Arbor Historical Signs Photo Subjects Commission on Professional and Hospital Activities (CPHA) Zinder Engineering Inc. University of MIchigan - Employee's Credit Union Signs & Signage Offices Engineering Credit Unions Businesses Ann Arbor Historical Signs 2000 Green Rd