notgeld

noun2

1. •
   Money issued by an institution in a time of economic or political crisis, usually without official sanction from the central government.

   • The catalog set I saw was pretty impressive (in size anyway). There were literally thousands of pieces of notgeld listed in three volumes! — 1993
2. •
   (rare) A piece of notgeld.

   • I am interested also in any information about Specimens,^([sic]) Trial proofs, etc, and any error note of the above, as well as any unlisted notes, including emergency issues and notgelds. — 1998