LAMB...Glass Milk Lid?

[West Jersey Detecting]

I found this by a creek behind the Little League field where my kid plays ball. The site was a farm and the creek seems to have been a bottle dumping ground. It is too overgrown to explore, so I will have to wait a few more weeks.

Can anyone identify this object? I know Lamb Glass was a big milk bottle manufacturer, but I thought most lids were cork before the metal lids became popular.

 

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[Gypsy Heart]

Its a canning jar lid...fits inside a zinc cap

 

[West Jersey Detecting]

Its a canning jar lid...fits inside a zinc cap

Thanks...Any idea of its age?