Actually, back then, the late-night radio programs I was into were TBS Radio's "Pack In Music" and Shinji Tanimura's "Seiyoung" (I didn't like All Night Nippon because the 1240 frequency didn't come in well and had a lot of static). Especially the Tuesday host, Kazuyoshi Kojima (other personalities included Kinya Aikawa, Nachi Nozawa, Fuyumi Shiraishi, and Kotaro Yamamoto). Also, I used to listen to "Yoru wa Tomodachi" (1976-82) which aired on the same station from 9:00 PM. I sent a postcard because they were giving away presents, and these are the items I received. A "Yorutomo" (abbreviation for the jingle that played at the beginning and end of commercials, "Yoru wa Tomodachi~") newspaper and a program pin (an illustration probably from the "Akazukin-chan Ki o Tsukete" corner). Basically, it was a PR magazine for their own program. The illustration on the back by Masamichi Oikawa was rare and excellent. Also, a program schedule for the 365th broadcast of Ikkei Pack on October 27, 1977 (Showa 52). It's in his own handwriting, and it seems to be a copy. There are lines through songs that were cut due to time constraints, corrections of typos, and notes on the passage of time. You can feel the hustle and bustle of the studio, trying to finish in two hours as scheduled. It's interesting as a piece of material. A truly rare gem! ➡ Listening while studying for university entrance exams, this means I wouldn't get into my first choice, and sure enough, I failed and had to retake the exams! ※ I kept them properly, but there is some fading and creases from the 48 years and from when they were sent, but they are perfectly readable.