Couple of interesting do dads

[Nu2Poo]

Can you experts identify these?
Thanks in advance.

 

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[vhs07]

Can we get a better photo of that twisted thing.

 

[Spats]

Please show a picture of the back of the do and a picture with a coin between the do and the dad so we can have a size reference.

 

[cudamark]

Looks like a Navy button to me. We'd need the backmark to narrow down the year and use. Measure the diameter too.

 

[bradyboy]

based on your pic, are you suggesting the metal twisted thing fits into the bottle?
Brady

 

[TheCannonballGuy]

The button is a Regulation-1941-to-present) US Navy button. Yours is shown in the Albert button-book as button NA-121B, anchor fluke is below the eagle's wing.

 

[Nu2Poo]

Thank you everyone. Sanmateo, yes that is how my partner found it as a surface find.