20th Century field find any ideas?

[artyfacts]

Dug this patented object out of a field. It says, Also Pat. in Russia, with no visible date or number. It has different countries listed, I guess part of a international patent, Spain, Japan, Australia, Germany, France and others. On the bottom ring of info it says, A Schrader's Son NY. and the word pat., the rest is worn and weathered away. It is threaded 7/8 OD brass. Any ideas as to its purpose.

 

[Bigcypresshunter]

Just noticed the stopper with the ring attached, it connected to the outside of the canteen, the Fleur-De-Lis style one had an internal chain, keeping the stopper attached to the inside of the canteen. Would not want to lose the stopper in the field.

The internal chain patent is the first patent listed in reply 25.

 

[Xhunter911]

<p>
Here is a similar one that I found today dating 1901.. Its a little damaged on the side, but still a cool find!