This is a pair of early circa 1840 cast iron 4" butt hinges by the T. & C. Clark Co, patented. Note the irregular edges and the stamped name on the front of each hinge. 

T. & C. Clark & Company Limited, based at Shakespeare Foundry, was founded in England in 1795 by Thomas and Charles Clark, and grew to be one of the largest iron foundries in Wolverhampton. They were from an old Wolverhampton family and became a large employer. Charles Clerk became mayor of Wolverhampton in 1860 after being a member of the Corporation since its formation as a municipal body. He became a Councillor, Alderman, and later Chief Magistrate.