Deutsche Post Assort Cover Stamps: “Welt der Briefe” and "Bobi and Tina"

DEUTSCHE POST current definitive stamp series called “Welt der Briefe” (World of Letters). There are eight designs at different rates: 5, 32, 37, 45, 50, 70, 85 and 95 eurocents. A complete list may be found here; "Welt der Briefe" – Wikipedia. Additionally shown here is "Best friends go on adventures: Bobi and Tina", "The Brave Tailor at Work" and Blue Bells.