PRS Hannover embossed stamp on rear sleeve Matrix / Runout: 198 173 =5 A 198 273 A 104 325 A 320 (Runout Side A) Matrix / Runout: 198 173 B=7 198 273 B 320 (Runout Side B) Matrix / Runout: 198 273 A (Label Side A) Matrix / Runout: 198 273 B (Label Side B) Label Code: LC 0113 Other: D. P. (Public Domain)