If you want a recreation:

https://www.swissmicros.com/product/dm41x

They also have their own versions of the 15c and so on. I have 3 different models (and one original HP RPN calc) and can confirm they are really high quality. Again though, spreadsheets are a lot more useful to me when I have more than just a simple calculation or two. I think these are mostly getting picked up by hobbyists, collectors, and those who work in labs and need a dedicated device with physical buttons.

Note that it doesn't have the big expansion pack things that I think the 41c came with if I'm thinking about the right calculator.