*VERY RARE* Hermès Kelly 28 Sellier Bag in Bleu De Prusse Box Calf Leather with Guilloche Palladium Hardware*VERY RARE* Herms Kelly 28 Sellier Bag in Bleu De Prusse Box Calf Leather with Guilloche Palladium Hardware Guilloch hardware is a rare Herms finish featuring finely engraved metal with a subtle geometric pattern, rather than the usual smooth polish. It was produced only during limited periods and is now discontinued, making it highly sought after by collectors. The textured surface catches the light beautifully, giving it a refined, jewellery like