https://www.zock.com/8-Bit/D_HX20.HTML
https://www.zock.com/8-Bit/HX20.JPG

https://www.zock.com/8-Bit/hx20qref.pdf
https://www.zock.com/8-Bit/hx20man.pdf
https://www.zock.com/8-Bit/Ad_HX20.JPG


https://upload.wikimedia.org/wikipedia/commons/d/d4/Epson_HX-20_in_case_-_MfK_Bern.jpg
By Sandstein - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=16306232
Epson HX-20 portable computer in plastic case with paper rolls.

https://upload.wikimedia.org/wikipedia/commons/8/8d/Epson-hx-20.jpg
By Steven Stengel - http://oldcomputers.net/pics/epson-hx-20.jpg, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6809808
Epson HX-20 (1981)