This dope-smuggling Bible from the November 1928 issue of Modern Mechanix illustrates the perpetual ingenuity of dope fiends:
Mechanical ingenuity of narcotic smugglers is constantly being tested in devising new methods of bringing their contraband goods safely into the country. The picture shows a Bible which has been hollowed out in the center to provide a hiding place for thousands of dollars worth of morphine and other opiates. The book was confiscated by Internal Revenue inspectors.