Topic: Glass vase with "bones"

[Lapimano]

Is the slight green color an indicator that it was made from recycled glass? (Beer and wine bottles?)

I tried to make better photos from the base: it is not entirely flat, there is an indentation slightly in the middle, and not very visible but there is some, but only a very little broken surface there. The surface in the crater is also very grainy. Not polished at all.
Not a typical broken pontil mark.

I'm not an expert, but I would imagine this was blown, since the little bones become elongated closer to the top rim, and I think that is because the glass was stretched when it was formed.

[Ivo]

It is called a sand pontil, when the pipe is dipped in sand and comes loose at a single tap, no finishing needed. Used on heavier pieces.

[Ekimp]

I would imagine this was blown, since the little bones become elongated closer to the top rim, and I think that is because the glass was stretched when it was formed.

It would’ve been blown into a mould to form the basic shape and the vertical ribs, then they attached a pontil rod to the bottom to be able to apply the decoration and shape/expand the rim etc.