My '69S (April build 1070 out of 1492), that has been sitting in my garage since 1974 with it's original headliner, is definitely GREY.
Last year I ordered what I thought was the proper Ivory color from Andrea70 at NOSGRUPPE in Italy, and when I received it I took it out to the car and was not happy with myself when I realized my mistake.
See post #49 below.
Bob B