MK-CHIRON ESTABLISHED CRYPTONYM AND CONTROL
2 November 1955
MK-CHIRON
CRYPTONYM AND CONTROL
The cryptonym BRAVO-CHARLIE is retired. The successor designation is MK-CHIRON. The retired cryptonym is not to appear in any communication issued after the date of the present instrument.
Control markings as per inclosure.
Distribution: holders of the file.
W.S.