Hewlett Packard calculator HP-37E from 1979 in its original box - Erix Collectables #101

Hewlett Packard LED calculators collection 1972-1979 - Erix Collectables #70See more

Hewlett Packard LCD calculators collection 1979-1999 - Erix Collectables #71See more

I found a Limited Edition 50th Anniversary HP-32S calculator! - Erix Collectables #104See more

Be surprised how rare this Hewlett Packard calculator is - Erix Collectables #89See more

HP 37E calculatorSee more

Putting a calculator on a overhead display projector - Erix Collectables #78See more

Collecting vintage LED Calculators - Showing some nice examples - Erix Collectables #69See more

Vintage Pocket Calculator ELKA 131! Goes to my Collection!See more

RetroTech: Hewlett Packard HP-01 1977's Smartest WatchSee more

1977 HEWLETT-PACKARD HP-01 LED WRISTWATCH CALCULATOR UNBOXING AND PARTS REVIEWSee more

Top collectable calculators from the eighties - Erix Collectables #77See more