Tony as you did not state the year of your E-Type there is a 15 year spread. The dealers lists I have are as follows:
1961/ Foreign Motors of Monterey 777 Del Monte Ave
1964/ British Motors of Monterey 777 Del Monte Ave.
1969/ British Motors of Monterey 777 Del Monte Ave.
1971/ as above
1984/ as above and still there
1986/ Monterey Jaguar-Rolls Royce --same address.
Best of luck