https://www.ebay.co.uk/itm/404835356152?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=bogatj92qsk&sssrc=4429486&ssuid=hNc7PDPYRJi&var=&widget_ver=artemis&media=COPY
Edit : I thought this a fake, but am told that some Precisions do have tuners and truss rod nuts that look like that.