DescriptionUS-O1insignia.svg English: Rank insignia for a Second lieutenant (US) Date 30 May 2006 Source Vectorized version of File:Second Lieutenant insignia.png
This image is a derivative work of the following images: File:US_CG_O1_insignia.svg licensed with PD-USGov-Military-Badge 2008-01-15T03:33:40Z Ipankonin
insignia for the United States [[w:United States Army|Army]], [[w:United States Air Force|Air Force]], and [[w:United States Marine Corp File:US-O1_insignia
insignia}} |Source=United States Public Health Service |Author=United States Public Health Service |Date=11-30-2009 |Permission= |o File:US_Navy_O1_insignia
rank insignia}} |Source=United States National Oceanic and Atmospheric Administration |Author=United States National Ocean File:US_Navy_O1_insignia.svg licensed