Coils do not last forever, your cars coil is subject to under hood heat, to much heat and eventually the coil starts to short. When in doubt - replace it!
2 x screw terminals with "Lucar" adapters.
Lucas part number: DLB105
Check before use but should be correct for most Minis to 82, MG's to 1974, Triumph TR4, 4A, Trumph TR6 1969 to 1972, Triumph Spitfire 1962 to 1974, GT6, Stag, early Jaguars, All Morris Minor etc.