PaperBasis

"""
US paper-stock basis sheet size used to disambiguate pounds-per-ream weights.
"""
enum PaperBasis {
  """Book / text papers. Basis sheet 25" × 38" (950 in²)."""
  TEXT_BOOK
  """Writing / ledger / bond. Basis sheet 17" × 22" (374 in²)."""
  BOND
  """Cover stock. Basis sheet 20" × 26" (520 in²)."""
  COVER
  """Index card stock. Basis sheet 25.5" × 30.5" (777.75 in²)."""
  INDEX
  """Tag stock. Basis sheet 24" × 36" (864 in²)."""
  TAG
  """Bristol. Basis sheet 22.5" × 28.5" (641.25 in²)."""
  BRISTOL
  """Newsprint. Basis sheet 24" × 36" (864 in²)."""
  NEWSPRINT
}