Is Special Menthol good? Does Segar have other Menthol Snuffs

Do you mean the Covent Brand Snuff sold by http://www.davy.co.uk/wine-bar/segar-and-snuff-parlour/ ?

If so, their tins are made by Wilsons of Sharrow and their tubs are made by Gawith Hoggarth, so that might give you some indication.

Covent yes Ahh ok thanks