Agree with Cat's Eyes. Agree with Asian. At least one most. That orange one at the bottom of the first picture could be an American marble, maybe from the Heaton company.
Many are early-ish from Japan.
Early-ish = 1950's to 1960's.
As a general rule the single-color four-vane cat's eyes with the clearest base glass have the best chance of being 1950's. But I think of your turquoise ones as early-ish even though the bases are coming through as a little gray-tinted.
Some of your three-color cat's eyes with six-vanes look like they might have a white "cross-through" pair of vanes. For example, the vane order being: blue, blue, white, yellow, yellow, white. Having a cross-through pair is desirable. Having a non-white cross-through is a little more desirable, but all are nice.
As the base glass gets darker or greener tinted, the cat's eyes become less distinguishable by age or decade -- just "newer Asian".