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
DM42
Plus42 : An Enhanced HP-42S Calculator Simulator
HP42 calculator on your smartphone | Physics Forums
Free42 : An HP-42S Calculator Simulator
Hewlett Packard HP-65 Calculator & Accessories i | eBay
Amazon.com : DM42 - The Most Precise Calculator. : Office Products
HP 35s Scientific Calculator | Educalc.net
Hewlett Packard - HP - 10B Business Calculator | eBay
Download Plus42 1.0.15
Hp 42s Calculator Repair & Upgrade - Keyboard repair & 32kb Memory Ram Upgrade - YouTube
Amazon.com : HP 12C Financial Calculator : Office Products
HP 48 series - Wikipedia
Vintage HP-42S RPN Scientific Calculator w/Owner's Manual | eBay
Free42 HP-42S Calculator Simulator Download
Free42 : An HP-42S Calculator Simulator
HP-42S
Plus42 : An Enhanced HP-42S Calculator Simulator
Plus42 : An Enhanced HP-42S Calculator Simulator
Plus42 : An Enhanced HP-42S Calculator Simulator
HP-10B
HP 42S Scientific Calculator - USED - TheCalculatorStore
HP-42S
HP 42s the BEST calculator and its FAST MODE | Gioorgi
The Hewlett Packard Calculator Page
