Has anyone got in their possession a Phillips 66 Map similar to the one used by Zodiac in his 1970 correspondence or one of equal scale and size. If so I would like somebody to run an experiment for me. 
Morf has the exact same one I believe..
Thanks Mr lowe. If he has I would like him to measure in inches with a tape measure the distance from Mt Diablo to San Francisco Airport approximately. If it is not 8.2 inches then I can move on.
4 and 1/4 inches.
With inches, there is no "point" anything.
Keep in mind…while the letter was sent in 1970, it is the 1969 map. They are slightly different.
“…they may be dealing with one or more ersatz Zodiacs–other psychotics eager to get into the act, or perhaps even other murderers eager to lay their crimes at the real Zodiac’s doorstep.“ L.A. Times, 1969
