The Princess Royal visits the Brandauer factory in Birmingham as part of its 150th anniversary celebrations.
She tells employees that they are part of an "incredible success story, one which is all the more remarkable for being a family firm operating at such a high level of technology.
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Duller conditions moving back towards the coast through the morning, leaving a mainly dry day with warm sunny spells.
Showery outbreaks of rain will become more widespread through Thursday with heavy and locally thundery downpours possible.
Pollen: West Midlands Update