Electronic components, 18 pieces

Thank you for looking.

This is a lot of 18 electronic components.

The manufacturer and specifications are unknown. They appear to be sockets for old ICs or LSIs, but please forgive me if they are something else.
Please refer to the ruler in the photo for size.

As I cannot confirm their operation and they have been stored for a long time, I cannot guarantee they will work correctly. Please consider them as collectible items or junk.
No guarantee of operation is provided.

I could not find a suitable category, so I have listed them under Smartphones, Tablets, Computers > PC Parts, although I do not believe they are PC parts.

Please purchase only if you understand and accept this.