Mike Roach
Liskeard
Clive Smith
![Picture](/uploads/7/6/8/3/7683812/cs07-46045-liskeard-1983-kj-file-aug19-4_orig.jpg)
David Critchlow
I believe it could be Air Supply Isolating Cock but I’m not a Hitachi expert (not an expert at anything really!) – see http://www.firstgreatwestern.info/acronyms.html
Cheers Regards, Dave Critchlow
Many thanks David- you are an expert David at finding out! Congratulations and thanks once again. That link provided by David/FGW is well worth checking on.