Kendra,
They look like they are part of a pipe bowl, where the top of the pipe had a hinged piece of metal on it. I found a picture of one that was on sale on ebay that looks remarkably like your parts
https://www.google.com/search?q=CPF+tyrolean&biw=1366&bih=653&espv=2&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjeg62spdrKAhUY2WMKHXGJBYgQ_AUIBigB&dpr=1#tbm=isch&q=hinged+pipe+bowl&imgrc=kHwnMSXtTBDfsM%3A
Emily Dale
________________________________________
From: HISTORICAL ARCHAEOLOGY [[log in to unmask]] on behalf of crushstone [[log in to unmask]]
Sent: Tuesday, February 02, 2016 3:19 PM
To: [log in to unmask]
Subject: Re: Artifact Assistance
One of those is a baby.
Sent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: Kendra Kolomyja <[log in to unmask]>
Date: 02/02/2016 5:14 PM (GMT-05:00)
To: [log in to unmask]
Subject: Artifact Assistance
I am looking for some suggestions and possible references to assist with identifying a pair of artifacts (believed to be parts of one object originally). For context, these were collected from a site dating to the late 18th or early 19th century with a historic First Nations association in Alberta. They may be from that period or slightly later (possibly as late as early 20th century). We have gone over a number of possibilities but haven't been able to establish a certain function or identification for these,
Here is a link to the photos: https://flic.kr/s/aHsksSJNXi
Thanks much!