On Mon, 01 Jun 2009 20:22:25 -0400, Peter Flass <[email protected]> wrote:
>> I've seen all of that - with cards with different cuts in the same >> deck, to make them easy to locate. > >We used to just run a felt-tip pen across the top. You could >distinguish four colors of cards pretty easily. But it is easy to grab a card that was added for a run, or grab the source code separate from the JCL, if we could feel the difference. One card-shark/magician trick with playing cards involves cards that are trimmed to be narrower on one side than the other. Without being apparent to the eye, an card placed backwards can be grabbed with the fingers easily. Punched card decks can be worked in a similar manner. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
