313 A.2d 787 Amerada Hess Corporation, Appellant, v. Zoning Board of Adjustment, Appellee. Commonwealth Court of Pennsylvania.Argued October 2, 1973 November 26, 1973. Zoning — Constitutional law — Scope of appellate review — Abuse of discretion — Error of law — Signs — Reasonableness — Arbitrary and discriminatory regulation — Public welfare — Total prohibition […]