The Mint Marked Poker Deck
If you play poker, then you know how dangerous it can be to have a marked poker deck. Marked cards are used by poker players to cheat the other players at a table. However, there are ways to protect yourself from this. These techniques will help you avoid being cheated in private games and save a lot of money in the process. Invisible ink During World War II, chemists worked to develop invisible inks that could not be exposed to heat, iodine or ultraviolet light. These inks were crucial to espionage, and the Allies and Axis powers waged a secret war over these chemicals. The best invisible inks are chemically …