That's really sad.
I used to get the catalogs and pore over them for a few days and then phone up to place an order, which always turned into a long, chatty phone call. As a result, when I attended the Orlando Worldcon, he invited me to sit in at the U/M table any time I wanted, and chat to everyone, including Jack and Norma..
I wouldn't have had nearly as good a time there without Chuck's friendship. We gradually lost touch as he stopped sending out catalogs and relied on selling via e-Bay, which I never took to...

I had wondered recently if he was still listing books there and did a cursory search without any luck, and now I know why.

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