WW1 card printed greetings 'Christmas Greetings .... Happy New Year.....from Frank Leonard Clark East Surrey Regiment (India Expeditionary Force address crossed through) At Sea Nov 18th 1916. 

Sent to Dulwich London card is only endorsed On Active Service. Cancelled London received From HM Ships DeC 21 16.

Bottom centre part triangle cachet CENSORED (initials) - as Gould 3B43 of the Hospital Ship Lanfrance.

Lanfrance was a requisitioned Liner, which was sunk following torpedo attack in April 1917. 

ID GB Sur 30064