The wear pattern couldn't be formed in any other way John, bearing in mind the sharply curved base, and I'm sure that the smaller the contact surface then the more apparent will appear the amount of wear - i.e. a few shuffles on the shelf would leave many marks. But as we're always saying, wear is a contentious feature, so perhaps not too reliable. Bulb vases from the period suggested would have seen a lot of 'movement', so it's a personal thing I have with wanting to see maximum wear on old glass.
Have attached some more pix of pieces which imho date from the middle of the C19 through to late C20. I would suggest that all except the Wedgwood piece are more or less the same colour - which to me looks very amethysty.
I think the Wedgwood goblet colour 'dies' under fluorescent lighting, which is why it appears insipid and brownish - it looked a good contender for amethyst when it came out of the cabinet, but was a disappointment when photographed.
The Richardson vase is c. 1930s and is a good bright colour.
None of these pieces has the violet appearance of Ben's bulb vase, which makes me wonder if the colourant for older 'purple/amethyst' glass was a different chemical mix to C20 requirements.
From reading the books I get the impression that this would have been manganese in a trivalent form for perhaps the first two thirds of the C19, but may well have switched to nickel at a later date.
Topic: Purple vase/bottle - Scandinavian? (Read 2302 times)
