Buffalo Exchange, the iconic, original buy-sell-trade store that got its start in 1974 in Tucson, Arizona, announced yesterday on its social media accounts that the company's visionary founder, Kerstin Block, has died. They wrote that Block "leaves behind an incredible legacy of sustainable style, individuality, and empowerment that continues to guide Buffalo Exchange today." Legacy provides more information, stating that Block "passed away peacefully at home at the age of 83 on August 29, 2025."

A few days ago, Green Living Magazine published a great tribute to Kerstin Block, calling her "a pioneer" of the buy-sell-trade fashion model. They recount that after the success of the first Buffalo Exchange in Tucson, Arizona in 1974, they opened their second store in 1976, in Tempe (shoutout t

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