Messages of military service can pertain to where and when, the job, even a military member's heritage, or, like this plate, I believe, to a specific veteran and their rank, seen in St. Louis, Missouri. There are others of this nature that I've found in my travels: ABNSGT in Virginia, E4MFA (E-4 a military rank) in West Virginia, CWOJO (CWO meaning Chief Warrant Officer) on display inside the Catfish Corner Restaurant in Aardmore, Oklahoma, and two from Ohio, RJLCOL (that message on a COMBAT VETERAN plate featuring a Silver Star) and COLHAM, one might assume, both plates owned by Colonels during their military service.