I have a TI Programmable 59 calculator with the Master Library chip, manual, templates and soft case that I don?t need. The main problem is that it doesn?t have the battery and it looks like someone tried to re-solder the battery contacts with a hot brick. (The contacts must have broken off, so the owner tried to fix it, but there are melt marks from the iron around the battery opening.) I picked it up at a thrift store some years ago and have not used it, so I do not know if it works. It?s yours for $5 shipping from Chicago (in the US/Canada, other destinations negotiable). Contact me off-list at feldman.r at comcast.net , as I get the list in digest form. ? Bob