More letters in this very angular thick and thin script:

Don

Blackletter meets handwritten script. No idea as to origins, but as for modern fonts...

Epaulet, though it may be too angular:
http://www.myfonts.com/fonts/t26/epaulet/

Other similar faces:
http://www.myfonts.com/fonts/linotype/cabarga-cursiva/
http://www.myfonts.com/fonts/letraset/coptek/

I like Arkona but that's really far from being even loosely similar... I like also Recape and Cabarga Cursiva (probably the closest).

Thanks to both of you. I had forgotten about Cabarga Cursiva. It really does have somewhat of the flavor. The other fonts are also interesting.
It occurred to me that this type of cursive lettering has some similarity to the angular cursive style of handwriting that was taught in German schools as Kurrentschrift http://en.wikipedia.org/wiki/Kurrent
But Kurrent lacks the thick and thin character and is less regular.
I wonder if there are any more fonts in the Cabarga Cursiva genre?
Don

Perhaps Brimley a bit backslanted and beefed up has somewhat similar properties. More calligraphic, yet angular scripts include Torquemada.

Thanks for the the new leads. Torquemada is really unique. It would be really interesting to see how it compares if it was expanded in width and the stems made parallel.
Don

Edited:
As for sources of the lettering, I looked a little further into the Kurrentschrift possibility and I came across a digital font by Peter Wiegel -- apparently a revival of an old font -- that he called Amptmann Script

Don

Have you done your usual thrawl of exciting old type specimens? I'm by no means as much of an expert as you, but just leafing through some fairly random online material, the Lining Jewel Script here is an extremely angular formal script, as is the Four-Line Pica Script Text here.

Thanks for the BB&S 1907 ref to Lining Jewel Script. The lowercase really has some similarity. Also the Cincinnati 1882 Script Text.
BB&S was a notorious font imitator, so I expect that digging through the competition might turn up more that are similar.
Big problem with the pre WW I font specimen books is that all one gets is a few phrases of the font in use rather than a character set. Tantalizing but not fulfilling.
Your research shows that this general idea was a font genre at least as far back as the 1880s. So digging might indeed be productive.
Don