I found these metal detecting and eyeballing around the river. The bottle top had a lid on it that has a small hole in the middle. The big Item I have no idea but has a latch that still moves and appears to have held something against the hole and and has wings.
The twisted brass object which has a wedge on one end is the mostly-internal moving "striker/latch" from a Mortise lock, a type typically used as door locks. The wedge is what extends from the lock into the doorframe, keeping the door from opening. See the photo below.
Right, but I believe the Moto Meter measured temperature. My understanding is that many vehicles had a non-pressurized cooling system when these were popular, instead using a thermosiphon system.
A good ID either way!