Station X May 3, 1940
Dear Alan,
We recovered the attached external key by
capturing an enemy ship. I hope that with it you
will be able to decipher the following message. It
dates from April 27.
Alastair
1340/27/3
JBZA DNDK NKAX KPHD BMQX PVYZ VTSS
DTNI IDSU WIWQ JTQI IXLE RDED AFRI
WKFK WVGK JBZA DNDK
