Hello. Your collection is very nice. I think it is very rare for people in Japan to own such a small telescope. Because of the high humidity in Japan, metal products tend to corrode easily and old telescopes deteriorate rapidly. Therefore, as soon as a telescope becomes old, it is discarded.
Furthermore, your residence is fabulous! The paintings, fireplace, and piano are all luxuries rarely seen in Japanese dwellings.
Please continue to show us your wonderful telescope collection. Best regard.
Your collections are wonderful! In the 1950s and 1960s, most Japanese telescopes were for export only. None remain in Japan. I learn about Japanese telescopes from foreign sites. I'm sorry about this.