|To give you an idea about the rareness of the books, we have developed
a quotation system, however the advertising items in the "various"
category are not quoted because they are (nearly) not available on the
The value of used books can change as the market evolves constantly.
Therefore quotation marks used in this catalogue are subject to change
at any time.
These are the quotation marks (for books in good condition ) used for this
catalogue with their meaning: