1937, war navy, letter with franking over 12 Pf Hindenburg and postal stamp German navy shipãs mail Kreuzer Cologne from 18.9.37 from a crew member the "Cologne" to Berlin; at that time was the "Cologne" near the 10. Spain association from 30.7.37 to 7.10.37 before Spanish coast in the line of duty; covers and cards the garrisons are vastly less frequently than offical postal service, slight trace of crease and tear at the upper margin, otherwise but good condition, Michel 70, 00