Duchess Kate sells out another coat

Kate, Duchess of Cambridge arrives at Rose Hill Primary School on Feb. 21, 2012, in Oxford, England.

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(CBS) She's done it again.

Another item worn by Kate, Duchess of Cambridge, has sold out after the royal wore it to a public event. This time, it was the "Birdie Wool Jacquard Shirt Dress" by Irish designer Orla Kiely.

Pictures: Kate, Duchess of Cambridge
Pictures: Her solo visit to Liverpool

Kate, 30, donned the brown wool coat dress, which features a pattern of birds, during a visit to Oxford, England, on Tuesday. She visited two schools to see the work of The Art Room, which uses art therapy to build confidence and self-esteem in children. The duchess was named patron of the charity last month.

A spokesman for the label said dress sold out "within minutes" of the duchess' public appearance and that there was an "absolute frenzy" on the website, according to the U.K.'s Mirror.

Orla Kiely's website lists the garment as out of stock, with no indication of whether more will be made available. It was on sale for 162.50 British pounds (about $255), marked down from 325 (about $509), and was available in brown and turquoise. 

Kate caused another fashion frenzy earlier this month, when the cost she wore during a visit  to  Liverpool on Valentine's Day - a brown, wool coat by British retailer Hobbs - sold out within hours of her wearing it.

Tell us: Would you wear Kate's coat?

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Kate, Duchess of Cambridge