hello Pete - welcome to the GMB

Might possibly help if you can say whether the name Grimware is on a label or if it's acid etched as a backstamp on the glass itself.
Regret I don't know of this name, and it may well be just a retail or wholesalers name rather than a manufacturer.
Do you know if this is cut glass or pressed - the sharpness of the design/pattern should make it possible to decide. Did you source this in Oz.
Edited to add..... it looks to be cut glass, but always worth being cautious
