Bureau of Investigation, 1923 Small 320×205 Medium 640×409 Large 1024×655 Download Tiff Original 1600×1023 | (1.6 MB) Description Flag of the Bureau of Investigation, 1923. Keywords Bureau of Investigation flag, Flag of the Bureau of Investigation Galleries US Flags, Black and White Outline Illustrations Source: Hydrographic Office of the U. S. Navy, International Code of Signals, American Edition (Washington: Government Printing Office, 1923)plate I
