TC — Your vase has reverse points in several places. Ask yourself the question "How can a cutting wheel cut a reverse point?" It can't, of course.
So it's not cut glass, nor, being precise, imitation cut, as the pattern could never have been cut. Perhaps "in the style of cut glass" would be more accurate.
So, was it pressed and re-shaped, or mould-blown. If it was mould-blown you would expect the inside to slightly mirror the deeper parts of the pattern on the outside. If pressed you would expect a perfectly circular profile on the inside, at least inside the bottom bulbous part.
Is the inside of the base perfectly flat and level? If so, that's usually evidence of pressed glass.
Inside corners are always pressed glass.
Don't forget that all combinations are possible, so those long slice cuts around the centre could have been cut, with the rest of the pattern pressed or mould-blown. On glass this old look for faint striations on the surface to determine if it was cut.
I hope that's not too confusing.
Bernard C.
