Lost & found collectors items in Sheffield

Vintage Sheffield enamel pin collection tin

I lost my vintage Sheffield enamel pin collection tin yesterday around 3pm outside Waterstones on The Moor in Sheffield. It's a small black metal tin with a red lid, about the size of a deck of cards, and inside there's a blue velvet insert that holds about a dozen pins showing local landmarks—the City Hall, the Winter Garden, and a tiny steelworks cog. The tin has a dent on the lid and a handwritten label on the bottom that reads 'Property of Amina Rahman' in black marker, plus a faint coffee stain along the edge. These pins were a gift from my dad and mean a lot to me; I’d really love to get them back if anyone found it.