Need help with a vase design

[SCALEMODEL]

I thought about it and in Shapr it’s top down loft.

This version by Mike makes most sense minus the Ridges on it and imagine inverted.

Does anyone know how I can recreate this?

If I may add my 2 cents worth here. The ‘vase’ (as I see it) is a bit more complex. It is cylindrical in shape but not a cylinder. I used a guided Loft and Pattern to create this shape. It is not 100% accurate as there is an anomaly with the loft. Anyway, this is quite close to the original shape.