Are these parts recognized? Darrin Parts?

[Darrin100]

Does anyone recognize these as Darrin parts?  The longer pieces have "Herron Zimmers Mldg. Co." engraved and the smaller clamp has "Super strut 700 1/2  TWO" engraved.    If so, any idea what group they belong to?   Lastly, I'm guessing the round piece might be for a medallion, but if so, where does it belong?

Thanks in advance!

[Terry T]

2 center pieces in 1St pic are channels to be  attached to stanchions for side windows

[Terry T]

they are rare and worth $400

[joefrazer]

The other items do not fit a Darrin

[larryk]

In the top picture, the item labeled SuperStrut is a 1/2" thinwall conduit clamp for use with U-channel. Google Unistrut.

[Darrin100]

Thanks everyone!