Havard and Morgan – Aerated Mineral Water Manufacturers Nantyglo.
As with most mineral water manufacturers they had quite a few different design mineral water bottles, Messrs Havard and Morgan had various stoneware bottles and a few glass bottles with the internal screw tops. This type of bottle was known as a Codd Bottle or a Pop Ally.
Size 7″ x 2″ inches.
Messrs Havard and Morgan were in business from 1895 to 1903.
Link to – Havard and Morgan History.