Just after an opinion here. In researching early pressed glass (1830s) I was of the opinion all glass houses were reliant on Birmingham mould makers for the early pieces, as this was the centre of such skills. I had assumed that before too long the skill would be spread around but after finding a newspaper clipping today doing some research, I was surprised to see signs the reliance was still there circa 1870.
This from the Birmingham Daily Post 1869, an advert placed by Molineaux Webb of Manchester:
To glass mould makers and die sinkers - WANTED, a workman to cut from the plain surface
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Unusual for a Manchester manufacturer to be advertising in Birmingham, suggests there were no skills locally.
Any thoughts as to when this dependency on Birmingham might have finally broken, if ever?