"EXHUMATION" is in the process of preparing a much expanded second edition of his excellent
The Price-Codes of the Book-Trade: A Preliminary Guide (2010) (cf.
here). I have contributed a few new codes, but one has so far eluded us, so I present some of the evidence here in the hope that a reader might be able to solve the puzzle before the second edition goes to press.
George Dunn's books are usually easy to recognise: they typically contain a book-label as follows:
On the facing flyleaf there are sometimes bibliographical comments, and almost always an acquisition-note consisting of a price-code, his initials "G.D.", and the date:
The price-codes usually consist of two or three minuscule letters of the Greek alphabet, but the numerals that they represent has never, to my knowledge, been decoded.