The signature of a secretary or other subordinate officer to any writing signed by the principal or superior to vouch for the authenticity of it. Fifth Ave. Bank v. Railroad Co., 137 N. Y. 231, 33 N. E. 37S, 19 L R. A. 331, 33 Am. St. Rep. 712: Gurnee v. Chicago, 40 111. 167; People v. Brie, 43 Hun (N. Y.) 320.