Bonnybridge brick found on Qeshm Island, Strait of Hormuz, Iran

Found by میرشمس الدین پیراسته فرد  (Mir Shams Addin  Pirastefard) at Shour Valley Geosite, Qeshm Island, Iran.
This brick is now deposited at Qeshm Island UNESCO Global Geopark Museum.
Bonnybridge Silica & Fireclay Co Ltd, Bonnybridge.
alt
Calder Firebrick Works, Airdrie, Lanarkshire.
alt
Chapelhall Works, Lanarkshire.

Hepworth Ceramic Holdings plc (GR-Stein Refractories Ltd. parent co) bought the Bonnybridge Silica & Fireclay Co. Ltd in 1972, closed Bonnybridge works in 1973 and closed Chapelhall in 1980. Therefore between 1972 and 1980, GR-Stein Refractories probably continued to manufacture bricks with this trademark for a time.

Below – Mir states – According to my investigation, this brick is related to the construction of oil facilities in 1933 in the south of Qeshm Island, Iran (Persian Gulf). The depth of the well drilled in this area is about 2500 meters. The attached photo is an overview of the area where the brick was found.

Similar articles