Pit shirt and silencer fit for a King?

Do any of you collect pit or crew shirts? I have a few jerseys but haven’t ever seen one of these before. Bought it off market place for $30. Owner said her son got it at redbud thought it was cool and swooped it up. Don’t want to sell let see yours . Also looking for a oem silencer for 92-96 cr250r to finish up the one pictured. Thanks