Quite true about the "old" books and your explanation fully explains the "issue".
We are indeed fortunate today to have all the great books on all facets of lugers that are available.
We do lack an "agreed" name for those lugers, I don't know what to call them as "they" extend in time from 1919 to the early 1930s.
Maybe they are "depression lugers"? I was not being derogatory when I called the pistol a "mongrel", though it probably sounded like it- maybe it and the many similar ones are just "orphans".
