That cadogan with the human face on the side
would not likely have been suitable for use. The description says it was slip cast. This means that a plaster of Paris mould has a very thick suspension of clay in water poured into it, allowed to stand a short period of time.The plaster of Paris takes enough water out of the supension in contact to increase its viscosity enough that it will be able to keep the shape of the mould when the mould is tipped upside down to pour the still semiliquid
clay suspension out.
That handle is so narrow in cross-section that the tube it contains would be very narrow, and the handle as a whole
quite fragile.
I have done enough slip casting to be quite sure of this.