The picture you posted shows very accurately the Washer Jet and base as fitted to AC Aces/ Acecas, Early Cobras and 428s not 427s. They are the same as the few I have located and offered to Peter. Not sure how many are available.
They were made by Trico,I'm trying to establish confirmation of part number, Reliably informed, that these units were fitted to Jenson CV8 and Jenson 541. Gordon Keeble, Daimler Dart SP250 and some Riley RM Series
Does any one have access to a old Trico trade book for confirming part number and accurately listing other more common cars these were fitted to, as I believe they are no longer manufactured.
Keith