Bullion Shark on Instagram: "The 1993 series of the U.S. $20 bill introduced several key security features aimed at deterring counterfeiting. Notably, it incorporated a security thread that glows under ultraviolet light and microprinting around the portrait of Andrew Jackson, which was slightly updated for a more refined look. This series maintained the traditional green and black color scheme and the layout design from previous versions, but with improved paper quality and more intricate design

NHL Top Players: Nos. 10-1