20

Banksy

Girl with Balloon

Estimate £100,000 - 150,000

Sold for  £189,000

25

Banksy

Welcome to Hell

Estimate £40,000 - 60,000

Sold for  £69,300

53

Ed Ruscha

Vowel #58 U

Estimate £12,000 - 18,000

Sold for  £22,680

180

Huang Gang

Mao

Estimate £6,000 - 8,000

Sold for  £7,560