Hello, completely new to this site. I'm doing some investigation for mum. She was a nurse in London for years before retiring. The item relates to her employment. The item I'm looking at is a silver (??) nurses clasp with a fairly standard cherub design. The marks I've tried to look up, but they're quite faded. At a guess it relates to London (is it a leopards head?), maybe late 19th Century (An E?) but can't be sure. I've got no interest in the value, just the history of the clasp. Can anyone improve on my guess?