wow, never heard of that or saw one before.
I have a 41c of some kind that was gifted to me some 20+ yrs ago. back when USENET was still for humans, we had a ba.market.computers usenet group that was great for local swapmeet stuff (long before there was an ebay). some guy put his up for free in non-working condition and I met him, we chatted and I went home with the calc and was curious to see what was wrong.
I ended up soldering wire wrap wires to all the contacts, one by one, on the display to the main board. that's what was wrong and I brute-force fixed it that way. probably ruined some collectable value but its perfect from the outside and perfectly reliable, now, from the inside.
came with card reader, bunch of cards, bunch of app packs and boxes. really nice gift but the guy was not using it and didn't care to put repair time into it.
I have it, its nice to use, but it sits in its box more than it will ever get used. maybe I should put mine up for sale, too.
I kind of like my hp25 better. not sure why, but I do.