Found this from what appears to be a 1901 Yokohama, Japan trip album online...........
Albert Lenoir Key......Lieutenant
So....the Lauer & Suter card would have to have been around or after 1901. Likely later..........Wonder when he was promoted to Rear-Admiral? Nothing in Wikipedia.......
Looks like both of the no ad cards are a little more re-drawn than the Lauer & Suter cards offering a little more detail?