I am not a collector, but I recently inherited this small collection from my great uncle. I am curious what some of these things are and was hoping someone might be able to tell me more about them.

I am particularly curious about the shoulder board(?) with the skull pin on it. The pin has M1/52 on the back. Also, the two patches. I can’t seem to find much about them.

Any input is much appreciated!

These are the other items he gave me. I think I’ve mostly figured out what they are.