Allthough common these are very attractive.
Boot & Harness blacking and Stove Polish was sold in these containers for more than 100 years up until 1910.
The salt glazed bottle on the left shows a lovely orange-peel effect. On the far right is pictured a very rare Doulton Lambeth miniture free sample 79mm." From.
I think you get extra points for the Bristoly glaze. All the ones I've found (which is 3, so take it for what it's worth) have been the darker brown, near an Albany slip, as I think we'd call it on this side of the big water.