Mo. Rev. Stat. § 445.040
1. It shall also be the duty of the recorder to record all plats delivered to him for record, in a book to be called a "plat book", and, when necessary to preserve uniformity, he shall reduce the scale of the original plat, and on each copy so made he shall endorse the following certificate under his hand:
"This plat is truly copied from the original. (Signed)______, recorder."
(RSMo 1939 § 12807)
Prior revisions: 1929 § 11183; 1919 § 9285; 1909 § 10292