Re: HP-67/97 cards Message #2 Posted by Juergen Keller on 26 Mar 2010, 2:38 p.m., in response to message #1 by Ed Sowell
Magnetic cards are regularly offered on eBay, search for 'hp 00097'. Currently I found only one auction offering a pack of 120 cards, which might be enough for the next years or even decades ...
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