Hi, this drop cap has been used sometimes. I'm not sure wether it was specially made and never released, but I still have hope!

Thanks!

This letter is in a style sometimes called Kirchengotische Schrift [Church Gothic font], which dates at least as far back as 1879 when similar letters were published in _Vorlegeblätter für Firmenschreiber_ [copying sheets for company clerk].
This would make an interesting font, but I have not seen it.
Substitutes in the style:
Aeronaut http://www.myfonts.com/fonts/facetype/aeronaut/
Tondella http://www.myfonts.com/fonts/intellecta/tondella/
Rheingold http://www.myfonts.com/fonts/scriptorium/rheingold/
Don