Brown Acid - The Thirteenth TripDESCRIPTION Vinyl LP pressing. That's right, we've reached a toker's dozen editions of brilliant long lost, rare, and unreleased hard rock, heavy psych, and proto metal tracks from the 60s 70s. Clearly this has become a bonafide archaeological movement as each new installment leads us to more exciting new discoveries. Like we've done throughout this series, all of these tracks were painstakingly licensed legitimately and the artists were paid. Make