What's this card? It's a "Sega Stocks Share-Holder Correspondence" letter! How unusual to see, & certainly 'random'. If you owned an amount of Sega Stocks in 1997, this likely would come in the mail. Notice how Sonic is all over it, despite Sega making other properties. It has a cool STK graphic on the front (with the moon?) & 2 Sonic arts inside. All the text is in Japanese (of course)