Our vases are blown into a mould - you can tell because the pattern can be felt on the inside and the outside. You can't just pour glass into a mould like you can ceramics - slip and molten glass have completely different properties. You start with a gob of glass on the end of a pipe, pop the gob inside a mould and then air is blown into the gob till it expands to the shape of the mould. Blowing can be manual or machine. In pressing, the gob of glass is dropped in to a mould and then a plunger squishes the glass up the sides of the mould. The inside of the glass has the same pattern as the plunger. It would just be too complicated to press such a diamond pattern - too much aligning and too costly. Optic moulded is something else... anyone.
The amber jug I would say was made in the same way, with the handle and the lip being manually done. With its polished pontil, it is probably of a similar vintage to my vase (with its polished pontil). The lack of definition is probably a result of a well-worn mould and/or reheating during the final hand shaping.
For the vases and the jug, the difference we are really talking about is time. My green vase and the jug were hand-made, probably pre-war. The blue and amber vases were machine made post-war. BUT the techniques are, to all intents and purposes, the same
Topic: Cat and Roz diamond/pineapple vase (Read 5336 times)
