Filled up with petrol yesterday and was driving along an A road when I heard a metallic ding ding ding behind me as the (obviously not correctly fitted) petrol cap disappeared into a hedge somewhere. Despite 30 minutes of looking I couldn't find it. have bought a petrol station replacement but would like a decent chrome one. It's a 1975 4/4 and I can confirm a 1969 mini's petrol cap doesn't fit! Does anyone know of the correct type so I can order one? It was a non-locking chrome one!

Simon