"The round clutch reservoir had a pressurized steel cap with no markings. There have been reports of E-types fitted with similar caps, but with GIRLING markings. The GIRLING caps were used on a range of British cars at the same time as E-type production and were likely placed on E-types during repairs or restoration. The authors have never observed a car known to be original with a GIRLING clutch reservoir cap."
The GIRLING clutch reservoir cap in the following images is believed to be for an Austin-Healey 100.






