Four post support brackets, two types (two of each), one for driving into earth with other for attaching to concrete. All from the interplanetary scintillation array (also known as the 4-acre array) built at Mullard Radio Astronomy Observatory, Cambridge, 1967. Parts from the Cambridge Interplanetary Scintillation Array
One post plus copper, one of two sets from the interplanetary scintillation array (also known as the 4-acre array) built at Mullard Radio Astronomy Observatory, Cambridge, 1967. Parts from the Cambridge Interplanetary Scintillation Array