109 A. 67 SUSIE R. DEVER, EXECUTRIX OF SYLVESTER A. SILVER, DECEASED vs. HOWARD C. SILVER. Court of Appeals of Maryland. Decided December 9th, 1919. Note Under Seal — Non Est Factum — Consideration. The plea of non est factum in a suit on a promissory note under seal imposes upon the plaintiff the onus […]