I just bought an Astro labelled 76.2 x 1250 circle K scope. With it came two double circle V eyepieces. What I found of interest is that they both have APL stickers on them.
Wow, there has been quite a lot of activity since I last stopped in here. Max, your Royal, Circle K scope with Double V APL eyepiece is a real stumper.
I started this post a couple years ago after about 10 years of research, and 6 years of postings by knowledgeable folks here on CN. It amazes me that now 2 years post, there are still more questions and less answers. Greg, I literally have hundreds of Japanese catalogs and documents that I have translated and reviewed. All tell a story, most get contradicted later About the only Japanese companies that seem to have some consistency in "the story" are Nippon Kogaku and Goto Kogaku. Other than that, it was a crazy time for manfacturers in Japan in the 1950's-1980's.
Firstly, as it may be relevant, it isn't a Royal Astro, just an Astro, see here:
I'm intrigued by your research, do you intend to publish any of it? There's obviously a lot of interest, and even in just a crude cheap form, I'm sure it would be really appreciated.
Have you anything to add on the Swift/Takahashi saga? From what I've read here, it would appear that this rumour (?) started via an odd early connection? Is there any positive ID on the AVA/AMA mark?