Unknown brass

[relichound]

When digging at an untouched Yankee camp in PA yesterday I recovered 2 pieces of unknown brass. Suggestions of what I have is much appreciated .

 

[Icewing]

The screw cap I believe went to an old metal tube like they used to put toothpaste and other such creams in. The odd spike thing is something I recently spotted on eBay but can't attest to the accuracy of it's description.

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/271936386768

 

[relichound]

Thanks!