From pics in my mind, both 71 & 72 had the over-the-roof strobe stripes offered - either with no V. top, or with the Landau V. top. The 72 had a little different width toward the bottom (wider), & a smaller strobe pattern (more blocks), like shown in the diagrams. Since these drawings are done prior to production of vehicles, sometimes there are differences between planned, & production, but these drawings coincide with what I've seen on cars back in the day.