Zodiac Cipher – Zodiac Killer – re The Mikado Letter a 1970 The Mikado, Oakland restaurant ashtray – July 1970 (1 of 2) Posted on November 25, 2014 Leave a Comment The wording on the ashtray is: The Mikado, Japanese & American Cuisine, 70 Jack London Square, Oakland As is customary, appears the name Randy Kenney. One wonders why.