I do have information about the earliest USSR semiconductors. If you want to know about them,

I am still seeking some early USSR semiconductors, in particular:

• С1Б, С1В, С1Г, and С1Д
• С2В and С2Г
• С3Г, С4Б, С4В and С4Г
• П1Д and П1И
• П5Г and П5Д
• П6Б
• П10А and П11А
• П13К
• П14Б
• П26А, П27 and П27Б, П29А
• ФТ-1, ФТГ-2, and ФТГ-3
• diodes ДГ-В1 to ДГ-В8 and СД1
• any ВГ-n diode e.g., ВГ-5

If you know where I might obtain any of them,