Check the listing for details. Army DUI DI CB ST. JOHNS John's COLLEGE ROTC Program 9m Washington DC. Listed at 10.00 USD. Unit= Army JROTC PROGRAM forST JOHNS COLLEGE in Washington, DC. Army Unit Crest. This is an hard to find DUI/Crest for the unit shown. It is in the condition shown. Out of a collection. Fastener= clutchback.