I wasn’t going to bid too much on this one from Tanya Hiles, but apparently I was intrigued enough:
This is a leadholder with an attractive nose cone:
The detail work on the barrel is pretty nice, too
The pencil itself is completely unmarked, with the exception of the letters K / S E I on the accommodation clip:
I’d suspect Faber, if there were an F on the clip somewhere and if underneath the nose there was a wooden inner barrel, but such is not the case:
Since the clip is an accommodation clip, it may have nothing to do with the pencil. However, it does look like it’s been there for quite a while so I’ll just throw this one out there for what it is.