^^^^correct sir. its the EL1 i'm after. Its taken a few years, but i have gathered the boost, vacuum, EGT and two temp gauges, all 60 mm white faced EL1 series. the pressure gauge is the only one missing (well, excluding the 120mm Tacho, but that's not so important right now). the auctions and ebay have plenty of the ELII, and plenty of EL1 boost, vacuum and temp gauges, but not one single pressure gauge anywhere. i even found an unused black faced version, all wiring and sensors, totally mint in box, but just the wrong colour. to paraphrase Sheldon impersonating The Incredible Hulk, "Phil Sad". Phil.