Thanks Jeremy: I had forgotten that Lourens had described that drawing before (but this image has higher has resolution). Lourens contributions will be sorely missed.
I might join the two threads.
So perhaps an edo goma is simply a wooden top with affinities to any top made in Japan during the Edo period or in the Edo (Tokyo) region.
Yes, I think that is probably a good definition.
Here is a book titled Edo Koma with lots of photos:
It includes not only the whimsical tops most commonly called Edo tops, plus the tops traditionally used by performance artists, but also even simple finger tops.
But it doesn't include beigoma or regional tops.
Beigomas started during the Edo period, originally made of sea shells, but are nowadays made of cast metal. As they are not wooden they wouldn't qualify. Likewise, fighter komas with iron skirts don't appear.
Well known komas like the Sasebo, Zuguri and Higo koma don't appear either. This might be because Edo was the old name for Tokyo and these tops are from other regions.