I found one of those "T" shaped things yesterday and one about a month ago at different sites. Both sites late colonial to late 1800's. Certainly more modern trash can be found at both sites. They almost look like electrical connections of some sort.

I'm guessing the ornate flattened brass tube to the right might be part of a cane decoration or maybe part of a scabbard as Luke suggested ???

The whatsit below the quarter I have no idea.

Any and all guesses are welcomed.