Today's river relics

[neodetectorist]

I went down to the river today and scored some interesting relics.
Cambridge Automobile Club AAA Ohio State plate
A key, but what is interesting about this key is it is probably the oldest one I have found out of the DOZENS of keys I have. Lincoln Mercury on one side and a car and made in USA on the other
A 1953D wheatie.
I believe something from a hotel key. Not sure of the age or if there is a way to find out.
You can read what is says on the pictures.
A marble surface find. I have not seen a marble like this before. It is clear. You can see through it but the image is upside down of what you look at through the marble.
2 plated that have Scovill MFG Co and some patent numbers. Maybe a car part?

Any info would be appreciated on the relics.










Thanks for viewing.

 

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[ScubaDetector]

Here is your patent:

https://www.google.com/patents/US1604552

Looks like a promising site

 

[neodetectorist]

Here is your patent:

https://www.google.com/patents/US1604552

Looks like a promising site

Oh wow you nailed the 2 plates. Front and back plates of a variable tuner. I remember seeing these in antique radios. Thanks Scuba.

 

[A2coins]

Wow those are cool finds I would love to finds some of that stuff good job!! Thanks for sharing!!!!

 

[neodetectorist]

The key has a date range of 49,50,51. It is the old Lincoln Mercury logo.

 

[trapperart]

Congrats on some neat finds