Queen visits Walsall gallery.
While chatting to a group of children at the town's New Art Gallery the Duke noticed the three Bostik-inspired sculptures and commented: 'You don't spell blue like that do you?'
He then proceeded to inquire of the children what Blu-Tac was, asking: 'Is it chewing gum?'
The Royal party were in Walsall to unveil a plaque and officially open the gallery which has had more than 50,000 people through its doors since it opened to the public in February.
During their tour they were shown the world-famous Garman Ryan Collection, around which the initial Lottery bid to build the gallery was based.
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