3 pcs Casio FX-82MS Scientific Calculator for School cover/case 2-line display. 4971850137931 | eBay
Casio - FX-82MS. I bought it in high school, used it in University and now on my 4th year as a Professional Accountant. Haven't changed the battery once. : r/BuyItForLife
CASIO FX82MS Advanced Scientific Calculator for A-Level & Gcse's -2 LINE DISPLAY | eBay