WWII Occupation - Guernsey Blue Paper Definitives MiNr. 4 MiNr. 5 In 1942, the prior definitives were printed on watermarked blue bank-note paper. Set Date(s) 11 March / 7 April 1942 Watermark(s) Album Page(s) Blue Paper Definitives MiNr. 4 MiNr. 5 In 1942, the prior definitives were printed on watermarked blue bank-note paper. Set Date(s) 11 March / 7 April 1942 Watermark(s) Album Page(s)