Here is a New Old Stock Mafco Oil Pressure Switch for 

Talbot

Alpine 1.3, 1.5, 1.6 SX 1975-84

Horizon 1978-79

Horizon 1.1, 1.3, 1.5 1979-86

Minx 1.6 1984-86

Rapier 1.6 1984-86

Rancho 1.5 1978-84

Solara 1.3, 1.6, SX 1980-84

Tagora 2.2 GL, GLS 1981-84 models.