Ray-Ban round metal glasses with tortoiseshell tips

I lost my Ray-Ban round metal glasses yesterday around 3pm outside the Royal Opera House in Covent Garden. They're black with tortoiseshell temple tips and a tiny dent on the left lens; inside the right temple is etched with my initials AH. Prescription lenses, with a faint scratch on the left lens. They mean a lot to me and I really need them back for work—if you’ve seen them, drop me a message.