There is a brief discussion in the book “High-Security Mechanical Locks” by Graham W. Pulford, page 322.
“The Bode-Panzer Tangential safe lock, based on designs issued prior to World War II, employed a dual-dial mechanism requiring a 4-bitted key and combination for opening … Of the two dials, only one was actually a wheel-pack combination lock; the other was a plunger, called a lafette, for a key-operated lock.”
“Further details of these intricate mechanisms are contained in German patents 214691 (1907), 418982 (1924), 642131 (1933), and 646623 (1933).”
The Kromer Protector was available with a lafette and appears to be similar, made until 1999 (pages 398-404).
