There is nothing odd in having a
German auction catalogue from the 30ies - I have many of them in my
library, too. Also, demanding Anton to disclose where
his (or
his friend's) coin is is irrelevant to the question and certainly not an information anyone is, or should be, obliged to provide in an online discussion group.
The Schlessinger coin is from the same
reverse die but possibly a different
obverse die, which is hard to see. Certainly not the same coin, though. This is a great coin
type, in any case.
Lars