Was wondering if anyone can tell me the significance on this shirt (http://shop21.porsche.com/usa/produc...WAP+705+00S+15)

1969-1971 on the right breast patch - 917 LeMans dominance.
Blue - Gulf blue
#30 - only 917 #30 I can find in Gulf blue is chassis #29 but the #30 wasn't one of the big winners and there is very limited reference on the Net.

Was this a 911 number?

Ned