Japan- 1975

Mem. Functions
4 functions
Sqr Root, %
"It is rather perplexing to note the introduction of the liquid crystal display on the one hand and the return to Flouro for three machines released around the same period (LC-820 - MEMORY-10, 803-MR and 103 MR). There must however, be reasons behind such timing and one supposes that the time delay between design of IC's, the placement of orders and the drawing to manufacturer delay causes such anomalies."
Ray Mackay, Old Casio Calculators

Source: Ray Mackay

X-Number World of Calculators