At 06:23 AM 12/22/2005, you wrote: >Does anyone recognize this device or know what machine it was used in? >SINGER MDL L107MA-17-2100, P/ N P56-050-110 MAGNETIC DISC MEMORY >http://cgi.govliquidation.com/auction/view?id=745204&convertTo=USD The clue is "Librascope", this is the company that made the LGPs: http://en.wikipedia.org/wiki/Librascope_LGP-30 - John