Pictures at an exhibition of essentials

Low End Pioneer

Ernst Erni Monte Carlo
HP-10B HP-20S HP-21S

Mid Range Pioneer

Midas Nardo
HP-14B HP-32SII

High End Pioneer

Trader Trader II
HP-17B HP-17BII

Mentor Davinci
HP-27S HP-42S

Clamshell

Tycoon II
HP-19BII

Paladin
HP-28C

Orlando
HP-28S

(c) Christoph Gießelink, March 2007