Thanks for the replies.
I agree with NotTheStig, my preference too, but provided it is covered and reduces the air getting inside then it does the job.
Would I be right in thinking that the Tabac bowl is slightly smaller in diameter and taller than a standard sized wooden soap bowl? Also, if anyone gets the Tabac Bowl from their local chemists or shop, how much does it normally cost? I live near St Albans in Hertfordshire, but everywhere here only seems to have a basic selection of Palnmolive and Erasmic and not much else.
Thanks
Stephen