The project is grateful to all the museums, dealers, individuals, and collectors cited in the catalogue, who help to make the present project possible. In addition, to the fundamental 'core collections', the project would like to acknowledge the special contribution of the following institutions and individuals:
Museums
who encourage the free use of images of their coins:
and, for giving free access to the collection of record cards:
Private collectors
Richard Ashton
Jared Clark
Robert Effler
Günther Gromotka
Detlev Henseler
Robert Hoppensteadt
Luc and Briac Michaux
Tom Mullally
Rainer Pudill
Pierre Requier
Charley Rhodes
Eric Ten Brink
Clifford Thring
Alberto Tricarico
Patrick Villemur