My moms 1975 Malibu Barbie got badly discoloured with age. I posted in this group last year asking for advice to fix her. Some people suggested the retrobright method using H202 and
Vintage 1975 Barbie doll $150 for Sale in Torrance, CA - OfferUp
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Twist 'n Turn Barbie 1975 Vintage Rare #8587 STEFFIE Face | eBay