It's rare to see any non-PC HP products on this subreddit, here are few of my favourite HP calculators from the last few decades : r/Hewlett_Packard
Plus42 : An Enhanced HP-42S Calculator Simulator
HP 42s Programming Example 1 - YouTube
Amazon.com : DM42 - The Most Precise Calculator. : Office Products
Free42 HP-42S Calculator Simulator Download
HP 42S Scientific Calculator from 1988 - YouTube
Plus42 : An Enhanced HP-42S Calculator Simulator
HP 48 series - Wikipedia
TI-84 Calculators for sale in Porto Alegre | Facebook Marketplace | Facebook
Plus42 : An Enhanced HP-42S Calculator Simulator
Sven Petersen 🙈🙉🙊 (เด็กอ้วน) on Twitter: "25 days after I have ordered it, my #SwissMicros #DM42 arrived. It is the most precise calculator and it is a remake of the HP-42. i