A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

People take pictures of a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

People take pictures of a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

People take pictures of a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

People take pictures of a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

People stand in front of a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs TPX IMAGES OF THE DAY

People look at a suspected new mural by artist Banksy on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

A suspected new mural by artist Banksy is seen on a wall at HM Reading Prison in Reading, Britain, March 1, 2021. REUTERS/Matthew Childs

An art handler poses with "Girl With a Ballon" by Banksy, as preparations take place at Bonhams auction house ahead of their British Cool art sale, in London, Britain, February 22, 2021. REUTERS/John Sibley NO RESALES. NO ARCHIVES.

A man stands near a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A man takes pictures of a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A man takes pictures of a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A new street artwork entitled 'Aachoo!!' by Banksy is seen in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

People take pictures of a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A new street artwork entitled 'Aachoo!!' by Banksy is seen in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A man stands near a new street artwork entitled 'Aachoo!!'by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden TPX IMAGES OF THE DAY

A woman looks at a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

People take pictures of a new street artwork entitled 'Aachoo!!' by Banksy in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

A new street artwork entitled 'Aachoo!!' by Banksy is seen in Totterdown, Bristol, Britain December 11, 2020. REUTERS/Rebecca Naden

People wearing protective face masks are seen walking past artwork named the Well Hung Lover, painted by artist Banksy, after new nationwide restrictions were announced during the coronavirus disease (COVID-19) outbreak in Bristol, Britain, November 4, 2020. REUTERS/Peter Cziborra

People wearing protective face masks are seen walking past artwork named the Well Hung Lover, painted by artist Banksy, after new nationwide restrictions were announced during the coronavirus disease (COVID-19) outbreak in Bristol, Britain, November 4, 2020. REUTERS/Peter Cziborra

Police officers check if people wear masks as they view a new Banksy artwork in Rothesay Avenue, amid the outbreak of the coronavirus disease (COVID-19), in Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

Police officers check if people wear masks as they view a new Banksy artwork in Rothesay Avenue, amid the outbreak of the coronavirus disease (COVID-19), in Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People view a new Banksy artwork in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People view a new Banksy artwork in Rothesay Avenue, amid the outbreak of the coronavirus disease (COVID-19), in Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People pose near a new Banksy artwork in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People view a new Banksy artwork in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People view a new Banksy artwork in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

People view a new Banksy artwork in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

A new Banksy artwork is seen in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine TPX IMAGES OF THE DAY

A new Banksy artwork is seen in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

A new Banksy artwork is seen in Rothesay Avenue, Nottingham, Britain October 17, 2020. REUTERS/Carl Recine

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is unveiled by an Italian Carabinieri and a French policeman during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is seen during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

French Ambassador to Italy, Christian Masset, poses in front of a mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is seen during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is seen covered by a sheet during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is seen during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi TPX IMAGES OF THE DAY

A mural by anonymous British street artist Banksy stolen from the Bataclan theatre in Paris and found in a farmhouse in central Italy is unveiled by an Italian Carabinieri and a French policeman during the ceremony to return to France at the French embassy in Rome, Italy. July 14, 2020. REUTERS/Yara Nardi

A statue of a chimpanzee bell-boy with a mask is seen at the entrance of The Walled Off Hotel in Bethlehem, in the Israeli-occupied West Bank March 5, 2020. REUTERS/Mussa Qawasma

A member of staff wears a mask as a preventive measure against the coronavirus as a statue of a chimpanzee bell-boy with a mask is seen at the entrance of The Walled Off Hotel in Bethlehem, in the Israeli-occupied West Bank March 5, 2020. REUTERS/Mussa Qawasma

A member of staff wears a mask as a preventive measure against the coronavirus as a statue of a chimpanzee bell-boy with a mask is seen at the entrance of The Walled Off Hotel in Bethlehem, in the Israeli-occupied West Bank March 5, 2020. REUTERS/Mussa Qawasma

An artwork entitled Neighbours at the site of a piece by artist Banksy, is seen near College Green at the start of the Bristol Light Festival, in Bristol, Britain, February 27, 2020. REUTERS/Peter Nicholls

An artwork entitled Neighbours at the site of a piece by artist Banksy, is seen near College Green at the start of the Bristol Light Festival, in Bristol, Britain, February 27, 2020. REUTERS/Peter Nicholls

An artwork entitled Neighbours at the site of a piece by artist Banksy, is seen near College Green at the start of the Bristol Light Festival, in Bristol, Britain, February 27, 2020. REUTERS/Peter Nicholls

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden TPX IMAGES OF THE DAY

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

A suspected new mural by artist Banksy is pictured in Marsh Lane in Bristol, Britain, February 13, 2020. REUTERS/Rebecca Naden

View shows the Walled Off hotel and a section of the Israeli barrier in Bethlehem in the Israeli-occupied West Bank December 22, 2019. REUTERS/Mussa Qawasma

A man takes pictures of an artwork dubbed "scar of Bethlehem" by street artist Banksy in the Walled Off hotel, in Bethlehem in the Israeli-occupied West Bank December 22, 2019. REUTERS/Mussa Qawasma