for comparison with Oakeshott's sword... a very similar pommel appears on an estoc in the Royal Armouries. A.V.B. Norman apparently suggested the pommel is associated.
Their new online collection could use a little fine-tuning... the estoc is probably number IX.54, but the unidentified photo is found only on the page for number IX.993.
https://collections.royalarmouries.o...ect-31726.html
https://collections.royalarmouries.o...bject-108.html