Basically, how does I write in this style? From what I can tell of examples presented, Regency Era letter writing
I am not looking for how to write in a period-specific voice, mind, I have confidence in my ability to pull that off convincingly enough, but a guide or lexicon or even a rule of thumb on which words are capitalized or abbreviated, or how certain words were spelled, or a note about where ellipses go would be much appreciated.
My internet searches have given me a large heap of absolutely nothing, besides a lengthy overview of how Regency Period letters were written, but nothing as to their content. Any input would, again, be appreciated, and thank you kindly for it.