These were found near eachother. My thoughts are an old shaving razer or skinning knife and the turn dial to a lantern. The round object reads as follows : VENUS.PAT.OCT -?- 1860
DEC. 10. 1867
Share your thoughts on if you agree or disagree and if not what is your thoughts?
On a straight razor, the tang (blade extension that attaches to a handle) would be straight in line with the back, even if the end of this tang were eaten up with rust that would be obvious. I think you're right with the knife assessment, that's a typical placement of a knife tang.
You could scroll through patents issued on those dates (likely two patents covering different aspects of the same object) using Google patents, just search the dates or whatever other info you might have. Google