🔎 UNIDENTIFIED Help identifying a couple of mundane things appreciated

[smr1000]

Must've been an old building in this area. Close to an old railroad. Found some coins between 1889 to 1920 today.
Curious if anyone has any ideas of these three objects.
Maybe the first is decorative or part of a lamp?
The second object seemed like an old piece of plumbing, but the decoration seems like perhaps something more.
I find a lot of the third thing. Something electrical?

I'm really grateful for all that I've learned on this site.
Happy New Year to all.
Steve

 

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[pepperj]

Electrical connector, gas fitting

 

[smr1000]

Thank you! I hate being clueless, but I appreciate all of the help from everyone!

 

[Tony in SC]

The two in the middle are fittings for gas lights. The last one looks like a ground strap.