MONEY
This subject is not simply about the depiction of banknotes, but rather how printed reproduction serves to certify value in reproduction. My specialist interest within this topic concerns the sorts of ornament that have historically been developed to secure printed money against counterfeit. These have themselves been imitated to produce value on other forms of printed securities and debased for use in vernacular promotion such as advertising.
 
The topic is treated more extensively in my doctoral thesis, of which parts may be (eventually) be downloaded as PDFs. A short illustrated summary can be viewed or downloaded here (3.2MB PDF)
Reader's Digest Sweepstakes Monetary Ornament Ghost Banks Safes
Banknotes Reconstructions (CW Dickinson) Ormsby's Transfer Press Guthaben