About this objectStainless steel surgical instrument - possibly a retractor.
Spring loaded handles with ratchet locking mechanism on outside of teeth.
Outside of handles have curved spiral ridges.
Springs held to inside of handles with screws.
Locking mechanism consists of sliding metal sleeve that fixes on striations on outside of upper parts of handles.
Allen & Hanburys Ltd London and stainless steel stamped on handles.
'KQ' stamped on inside of handles plus two symbols that could be fives.