24
SV = IV(0x768010) at 0x768018    <-- See SVt_IV image below
  REFCNT = 1
  FLAGS = (PADMY,IOK,pIOK)
  IV = 1000                      <-- 8 bytes

48
SV = PV(0x752f28) at 0x768000    <-- See SVt_PV image below
  REFCNT = 1                            Three more fields than SVt_IV
  FLAGS = (PADMY,POK,pPOK)
  PV = 0x7d6520 "\207h"\0
  CUR = 2                        <-- Even though only 3 are needed,
  LEN = 8                        <-- 8 byte string buffer allocated