(389 P.2d 590) STANLEY HAILPERN v. J. ROBERT DRYDEN, ET AL. No. 20,383.Supreme Court of Colorado. Decided February 24, 1964. Action for rescission of contract on ground of mutual mistake of fact. Judgment for plaintiffs. Reversed. 1. CONTRACTS — Rescission — Mistake of Fact — What Constitutes. A mutual mistake of fact is a clear […]