Ok, I got to the start of the Japanese section. So I have these remarks and questions about the scientific toys section.
You mention both James Clerk Maxwell and Crabtree's book. On pages 8 and 51 of Crabtree there are drawings of the remarkable "Gyroscopic Top". I read this was invented by "a professor Maxwell" but it did not specifically say it was THAT Maxwell. Do you know if that was the case?
At the time John Gorham invented the Kaleidoscopic Colour top in England, another J. Gorham on the other side of the Atlantic was starting Gorham Silver manufacturing that would much later make the poker top of sterling silver on page 62 (without caption.) I have the version with the "decision maker" design instead.
In the Blondin top, page 80, the lower top is just a pedestal, it does not spin, is that correct?
Did you ever try the Phonograph Top? Did it play a tune? (I asked the same question to Cyril M. but I believe he answered that he did not dare to test it).
Can you explain the Fireworks top? Do you spin it in the dark and shine a light on those strange attachments to the stem?
Yes, the picture of the collection of tops from the 1896 issue of La Nature is amazing and I am not surprised you write that you "felt struck by lightning" the first time you saw it. That article is available on the internet, in particular the drawing is
here. The following year Scientific American published the same article in English, which I have. I plan to scan it an posted on the website one day. I imagine collecting all those tops must have been a great incentive. I have many questions about the tops in the Nature poster, but you say they will be discussed individually later.
Tops made out of glass are unusual for obvious reasons. I wonder how many of the "ink well" tops (pages 89-90) survived all the tricks described in the brochure! Do you dare test it?
You describe the "American Football" top, page 91, as American from 1945-1955. It always looked older to me, like taken out of the pages of Perry's book that you mention on the same page.