Artist

MB

Mary Rogers, British

British

RA

Robert Rogers, American

American

HG

Heinz Schulz-Neudamm, German

German

WG

Walther Teutsch, German

German

RA

Ronald Jones, American

American

Friedrich Froebel, German

German

Edmond-François Aman Jean, French

French

AF

Aurel Bauh, French

French

JK

Jon Widman, Korean

Korean

MA

Michael Venezia, American

American