July 26, 1889
Section 5 of Railway Mail Rule II is hereby amended by adding an additional clause, as follows:
(c) Printers, employed as such.
Approved:
BENJ. HARRISON
Benjamin Harrison, Executive Order—Amendment of Civil Service Rules Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/205976