as a general rule, if you have two main vertical seams then it's reasonable to assume this was made in a two part mould - three if you count the base. When there is moulded patterning on the glass, the seams are often located to coincide with lines from the mould - an attempt to make the seams less obvious.
coming back to the comment about A.&C., I don't get the impression that this style had much, if any, influence on mould blown/pressed glass such as Scott's vase. If you look at Jackson's book on W/F's glass, and those pieces described as A.&C., there is a distinct Venetian delicacy, fineness and sinuous design, features which don't translate to the chunky utility types, such as this vase.
Confusingly, throughout Europe there were several overlapping, related styles that occurred from somewhere in the 1860's and on until the end of the 14-18 war, which did have an influence on designers of pressed or mould blown glass, but my opinion is that A.&C. wasn't one of them.
Of those styles that can be seen on pressed/mould blown glass, the neo-classical looks to be the earliest of these - and can be seen in the Greek Key, Sphinx, and urns with wreaths - some of these imitating Wedgwood's basalt, and others in vitro porcelain such as copies of Queen Anne sticks from Sowerby.
Sowerby produced items with a Japanese/Oriental flavour, the best known being possibly Queen's P. I. W. - and another fashion of the last quarter of the C19 was aesthetic, seen in most of Sowerby's nursery rhyme pieces - the shapes of which look to be almost forerunners of art nouveau. This may have been the last of the great arttistic styles - before everything went chunky with art deco - but again, nouveau doesn't look to lend itself to utility glass, although a lot of art glass was made in a nouveau style.
Not always easy to separate out the particular features of these styles, although all I think lack the apparent delicacy of A.&C. However, having said that, there's nothing very delicate abut Morris' chunky tables made in the A.&C. style