Hi David, This link should answer your questions, and perhaps a few more :o) http://www.nationalarchives.gov.uk/records/research-guides/merchant-seamen-sea-service-1913-1972.htm Regards, Sally > From: [email protected] > To: [email protected] > Date: Mon, 20 Aug 2012 08:33:44 +0100 > Subject: [ENG-LIV] Merchant Navy Records - Liverpool > > Can any lister help me to better understand some documents I have in my possession stamped "M.M. Office Liverpool, from the 1920's and 1930's? > > What is C.R. 1. marked in top left corner? > What is C.R. 2. marked in top left corner? > What is Dis. A. No.? > > Thanks for any help offered. > > David