IBM 6648 - Manual (Page 111)

TURKISH - ID 440 37L2580
UK ENGLISH 37L2581
YUGOSLAVIAN 37L2582
UK ENGLISH (ISO) 37L2583
JAPANESE 37L2584
CHINESE 37L2585
KOREAN 28L1905
THAI 37L2587
Chapter 2. Types 6568/6569/6648/6649 97