184? Silver Victoria Fourpence

This was once a British 184? Silver fourpence.
Coins aren’t my thing so I’m assuming in this mauled and holed condition this is only worth scrap but before it goes in the scrap silver pile maybe please could @daveydempsey help explain the mess on the reverse ? Is that wide stripe of silver from mint error or likely from someone’s handiwork? It sits slightly proud of the face.
Thankyou

 

1848?

 

You could save it for an ethnic jewellery necklace. In some parts of the world the occasional British coin would turn up through trade, and be mixed in with Spanish reales, Maria Theresia Talers and local coins.