I agree, but in general the population would refer to both as 'Ausweis', at least in occupied Holland they did. My point is that devices such as these can be very dangerous in the wrong hands. In the end you also needed a valid one to obtain food stamps, which was a real problem if you had gone underground. My Aunt, bless her Soul, developed into a master forger who supplied many an 'illegal', as the Germans called them, with picture perfect copies. Not that it really mattered in the end as there was precious little food to go around anyway.