The Purple Copy
This First Folio has been called the “purple” copy, because five leaves have an unusual, faint purple tint, as do some leaves in First Folio 78. This suggests that someone supplied both of the First Folios with original leaves from the same, purple-tinted First Folio.
But that’s not all: incredibly, the “purple” copy has leaves from at least five different First Folios. Henry and Emily Folger purchased it in 1901 for $892.50.