I found this piece on a Discogs page at this link: https://www.discogs.com/label/212333-Magic-Mixture?page=1 "MAGIC MIXTURE - Record label of shop of same name, run by Hugo Chavez-Smith and based in Balham Continental Market, 31 Bedford Hill, London SW12 in late 1980's/early 1990's. The market is now demolished."
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Location
Magic Mixture Balham Indoor Market, 31 Bedford Hill, SW12 Balham / London
https://www.discogs.com/label/212333-Magic-Mixture?page=1
"MAGIC MIXTURE - Record label of shop of same name, run by Hugo Chavez-Smith and based in Balham Continental Market, 31 Bedford Hill, London SW12 in late 1980's/early 1990's. The market is now demolished."