SHO-1d re-issue has a darker yellow color vs. SHO-1a pale yellow in the SHOWBOAT letters and the MARDI GRAS lettering is a bit bolder. Also, the purple color in the mask is slightly different. The black figure in the yellow splash at the one o-clock position is much bigger on the SHO-1d. The finish is different, SHO-1a is shiny the SHO-1d is flat.