The 10 different t-shirts to be given away for the U.S.’ only remaining Sigma Derby raci …

The 10 different t-shirts to be given away for the U.S.’ only remaining Sigma Derby raci ...

The 10 different t-shirts to be given away for the U.S.’ only remaining Sigma Derby racing machine on its 10th Anniversary at the D Las Vegas on Wednesday, June 29, 2022. (L.E. Baskow/Las Vegas Review-Journal) @Left_Eye_Images