It's so odd I think it's probably original because as Rick said above, it's got a post Anschluss precedence and the story makes sort of sense (retired navy guy-no front line service in WW1 almost makes one think mail boat or accident victim). Lots of Austrians never applied for the HKx (vets only had about a year to apply for them and many did not) and one thing I have noticed is that most fakers have tells-much like con men everywhere (or bombers for that matter). I was taught many years ago how to I.d. some hard forensic evidence from crime scenes. One pattern common to almost all humans is "SOP"-that is "Standard operating procedure. People who do things tend to do them in patterns-the same way, almost always. Thus in analyzing bomb fragments one always looked for a twisty tie to be wrapped a certain way, or a particular type of plastic to be used etc.. Here, many, if all the fakers, are unaware of the Austrians didn't apply for the Hkx issue and put an HKx on (it's cheap). however, on another forum there is clearly a significant amount of photographic evidence that a LARGE number of Austrians did not get the HKx-even those later recalled into the Wehrmacht!