Some of the $1 notgeld coins:
Aachen (Rhine, Prussia) 1 Öcher Grosche (10 Pfennigs) 1920

Aachen (Rhine, Prussia) 25 Pfennigs 1920
Bonn-Siegkreis (Rhine, Prussia) 10 Pfennigs 1918

Bonn-Siegkreis (Rhine, Prussia) 10 Pfennigs 1919

Kaiserslautern (Bavaria) 10 Pfennigs 1918

Lüdenscheid (Westphalia, Prussia) 10 Pfennigs 1918

Thale am Harz (Saxony, Prussia) 10 Pfennigs 1921

Aachen (Rhine, Prussia) 1 Öcher Grosche (10 Pfennigs) 1920

Aachen (Rhine, Prussia) 25 Pfennigs 1920

Bonn-Siegkreis (Rhine, Prussia) 10 Pfennigs 1918

Bonn-Siegkreis (Rhine, Prussia) 10 Pfennigs 1919

Kaiserslautern (Bavaria) 10 Pfennigs 1918

Lüdenscheid (Westphalia, Prussia) 10 Pfennigs 1918

Thale am Harz (Saxony, Prussia) 10 Pfennigs 1921

Inordinately fascinated by bits of metal with strange markings and figures