Is this a Clay Craft/ Royal Oak mug?

I can't tell by the gallery photo if this handle is a match for Clay Craft?
The body looks different to other Clay Craft and there is no markings (of course).
It has a Royal Oak look to it, but there is no red in the gallery.
Does anybody have thoughts or knowledge about this piece.
It is 10.5cm high

It is not the Kilncraft mug with similar handle.

I have not seen one like this before but I'm pretty sure it will turn out to be Royal Oak.

I base that opinion on the form of the base including the splash of glaze, and on the frothy top glaze.

I love these rare ones. If I had not seen other oddities from Royal Oak I would be less inclined to commit here.

We need an opinion from oakpot here.
Val's thoughts would be good too.

Thank you for your input Jeremy. It will be interesting to see what it turns out to be.

This mug is unfamiliar to me and is not a Royal Oak item.
It has been cast by a craft potter possibly in low numbers, as the red colour in a glaze is expensive to produce.