Huh? https://www.morpethantiquejewellerygallery.com.au/product/antique-art-deco-22ct-gold-plate-bangle/
Oh, virtually zilch then, Contact Morpeth Jewellry in the North of England from where you borrowed the pictures from and stop wasting our time.
Try around Hillingdon or even Islington. There was a guy called Harv who specialised in cheap jewellry.
You already knew it was plated before posting as this is on your profile. Find all threats by ANTIQUE ART DECO 22ct GOLD PLATE BANGLE BRACELET c1920 We are not threats
If anyone remembers Harvey on the old eBay Antiques forum at the same time as DSS well this is him, a not very intelligent troll. Always arguing about cheap crap jewellry he sold in his store. Well he is no longer, as soon as I posted Harv he stopped posting, Busted.