I’m not a 切手収集家 (stamp collector) but sometimes the post office offers 切手 (postage stamps) that I can’t refuse…so I have a few collectors’ sheets of stamps from the Japan Post Office.
One of them is the 「スター・ウォーズ切手」 (“Star Wars” stamps). These stamps came in a nice, hard-cover protective binder illustrated with Star Wars artwork.
And here is the protective binder:
Another series of stamps that the post office in Japan offered a few years ago was what they called 「科学技術とアニメ・ヒーロー・ヒロインシリーズ」 (“Science & Technology and Anime Heros & Heroines Series“)…which included such anime as 「鉄腕アトム」 (“Astro Boy“) and 「名探偵コナン」 (“Detective Conan“)…but the one I got was Series Four: 「科学忍者隊ガッチャマン」 (“Science Ninjas: Gacchaman” (known overseas as: “Battle Of The Planets“)).
I used to watch this cartoon in America when I was a kid.