Mystery items??? Found in hertfordshire, england

[nat&maine]

Hello there, please can anyone help with any of these items















Please any help?

 

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[bulrush]

Pic 1.
Left: buckle of some sort.
Middle: clearly a garter buckle.
Right: unknown

Pic 3, flat thing. Unknown

Pic 4. Square nail made by a blacksmith. I find lots of square nails.

 

[yaxthri]

Next time better choose a non-patterned backdrop for you pics...