July 1-3- The Battle of Gettysburg, Pennsylvania. The bloodiest battle of the Civil War dashes Robert E. Lee's hopes for a successful invasion of the North. July 4- Vicksburg, Mississippi, surrenders to the Union Army under Grant.
Method. 1  Test the pen to make sure it can tell the difference between good money and computer paper. 2  Apply spray starch to the next dollar bill in an attempt to make it read as fake. 3  After drying, test the results by re-applying the counterfeit money detector pen to both the dollar and to the computer paper.
Examining Security Features. 1  1. Hold the bill up to the light. 2  2. Use an ultraviolet (black) light to look at security threads. 3  3. Check for watermarks.  4. Tilt the bill to examine the color-shifting 1  ink. 5. Examine the micro-printing.