cover GERMAN OCCUPATION": 1918 (21 Aug.) Russian "Kerensky" 3k. card with 15k. (perf.) to Warsaw cancelled by German type "LOMZA" c.d.s. and 1921 (24 Aug.) Russian "Kerensky" 20k. card from Stettin to Dresden cancelled by German type c.d.s. with P.O.W. mail and censorship h.s.