Ed Dworak writes
The two patches to the left are really two sets of five patches each. They were really hard to scan because the segments would move when I closed the lid on my scanner. I moved the segments away from the center patch to show that they were separate patches. I still have the handwritten note from the seller that states "The District used the same center patch for several years but issued different rockers for events in different years." These represent two different years. I don't know the exact year they were issued and I don't have any other years. The round patch in the center is 3 inches diameter.