General Remark on
Genuineness of the "ORI" Issues (P-16 to P-35)
The quality of the "ORI" money is generally rather poor. This lead - already
during their production - to the conclusion that counterfeiting would be
relatively easy. Thus the Financial Authority looked for solutions to thwart
counterfeiting. One of the measures was to apply secret codes (fixed
relations) between serial numbers and Block letters, in order to enable
authorities to identify fake notes easily.
Rob Huisman (IBNS Member 9226), a valuable collector from The Netherlands, scrutinized with great
zeal as much as possible "ORI" notes for such hidden constructions.
He worked out different tables for the possible code combinations which do
appear on genuine notes.
Unfortunately, not all counterfeits can be identified based on Huisman's
findings. If forgeries were produced carrying the same code combinations as
genuine notes, other indications need to be used to identify false notes.
Thus, knowledge about the possible code combinations enable us only to
conclude that a note is not necessarily false, or - if the code is not
matching at all, to classify it immediately as a forgery.
Wherever available or applicable, we have included the "Huisman Tables" on
the individual "ORI" notes.