1970's pocket calculator. Simple arithmetic machine, handheld device. Sharp ELSI MATE EL-8031. The word LOSSES spelt out on the display Stock Photo - Alamy
MX-1) vintage Casio Elsi-Mate EL-326-A - Solar Cell Calculator w/ Vinyl Case
Sharp Elsi Mate EL-243SB Simple Calculator - LCD Display, Hard Shell Cover, Dual Power, 3-Key Memory, Compact, Large Display - LED - Battery/Solar Powered - Handheld-EL243SB : Available at Mobile Store in
Sharp EL-500 Handheld Electronic Calculator | National Museum of American History