Both appear to be brass but I have no idea how to date them? Are they brand new? 100 years old or somewhere in between? Found at separate times in different locations.
The two buckles you have the camera centered on look old. 1800s, possibly early 1900s. The one at the bottom, next to that Airborne badge thing, looks a little older. Nice finds by the way, and is that an old miner's tag that says GVH?