Like many German astrologers of those days he was imprisoned in the Dachau concentration camp (1941–45).
Tables for this system first appeared in 1971, in an English translation of the work of Walter Koch.
In spite of the claims of priority and originality made for this method, it is but a simple modification of the Alchabitius System.
To better compare systems subject to distortion, a high latitude city was chosen (Stockholm, Sweden) and the time corresponds to a long ascension sign (Cancer).
For clarity purposes, all the usual aspect lines, degrees and glyphs were removed.