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1993 Albert Hofmann 50th anniversary Bicycle Ride Psychedelic summit cannabis

1993 Albert Hofmann 50th anniversary Bicycle Ride Psychedelic summit cannabis Archived listing photo
Starting price (see what it sold for on eBay ↗) $700.00 Buy It Now $1000.00 as of Jul 11, 2026
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Closed Fri · Jul 17, 2026
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Ships from ZIP 954**
sirinci-51 340 ratings · 100.00% positive
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Description

From the seller
Dr. Oscar Janiger, Albert Hofmann. & Cannabis Action network. Hofmann Foundation resarcher, Dr Lester Grinspoon, marijuana -. Albert Hoftnann, father. Robert Zanger, Albert. pioneer; Ken Goffman. Farm; Tim Leary, LSD.

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