Hunbatz Men
Nothing in his 1989 book "Secrets of Mayan Science/Religion" about the crystal skulls.
Hunbatz Men is now very well connected with crystal skulls. But since what year, before or after 1997 ?
Does he speak about crystal skulls in his other books (before 1997, Chris Morton and Ceri Louise Thomas's book) ? That is the question.
Mayan Sexual Education (1952)
K'U is Sacred In Maya, K'U is Sacred in Tibet (1991)
He was coauthor of two three books :
Mayan vision quest: mystical initiation in Mesoamerica (Cynthia MacAdams, Hunbatz Men, Charles Bensinger - 1991)
Tzol EK' Mayan Astrology (Hunbatz Men, Jaime Guerrero - 1991)
The Portent: a Story of the Inner Vision of the Highlanders Commonly Called the Second Sight (Hunbatz Men, Cynthia Macadams - 1991)
I'll ask the question directly to Humbatz. We'll see