Metals and so forth

Metals I have come across in my Flea Market adventures. Some are metals, some don't know and so on.
I have some good information supplied to me by one of our good ole boys, thanks AR8Jason, comments are greatly appreciated.
Picture 2: USN Anchor -range insigna of a Chief Petty Officer in US Navy
(2) USMC Marine Corp pins
Be Prepared-Boy Scouting
Picture 4: Naval Aviator Wings N.U.S.

I have recently added a new photo that shows the back of the Naval Aviator Wings.