(Hope this message is not against rules, or wrong subforum).
(I'm not the seller, have nothing to do with the auction).
I found article about learning Morse on records, starting from earliest published sets where the Mercury/Carnegie set is described.http://www.normanfield.com/morse.htm
I see a set on Ebay (78rpm), all 16 discs?
Hand typed instruction album, or is it printed?http://www.ebay.com/itm/Antique-1907-Telegraph-Lessons-Mercury-Phonograph-RECORD-set-morse-code-/321234731493?pt=LH_DefaultDomain_0&hash=item4acb1501e5
This is American Morse, not International.
Apparently the record will produce the clicking sounds demonstrating proper sounder audio.
That way you know your are doing it right on your KOB!
Maybe somebody ought to transcribe the set to .mp3 files , if that has not already been done.