Hostage of Tomorrow By ROBERT ABERNATHY - https://www.gutenberg.org/cache/epub/64710/pg64710-images.html

 For the first time Schwinzog looked interested. "And how do you explain your presence in the year 2051 nach der Zeitwende?"

The scientist was soothed. "I am Dr. Pankraz Kahl, member of the Kaiser-Wilhelm-Gesellschaft, inventor of the world's first Zeitfahrer

 and smooth-paved streets along which shining traffic moved with the whisper of electric motors.

The night before, in the room Kane had given them, Manning had lain long sleepless, and passed the time turning through Kane's books of history—titles like Aufstieg Deutschlands zur Weltherrschaft, Eroberung der Erde, Das deutsche Jahrhundert.... One thing about the oddly twisted story they told had piqued his curiosity, and he had sought earnestly before he found mention—in a footnote—of the fact that one Adolf Hitler (1889-1945) had occupied the civic office of Reichskanzler (later abolished) at the time of the Conquest. But the leaders of that period, according to the histories, had been the generals and military men such as Rundstedt, Rommel, Keitel and Doenitz.