Calvert & Co was an English porter brewery in the eighteenth century.
Calvert brewed at the City of London brewery.
[1] Between 1784 and 1791 it was the second largest brewery in the world in terms of production volume.
[1] The Hour Glass Brewery was founded at 89 Thames Street by 1431.
In 1860 the City of London Brewing Company was formed to acquire Calverts.