Monroe "990-TWO" Ad
In 1972, as handheld electronic calculators made their presence in the marketplace felt, sales of some of the earlier desktop-style calculators began to cool off. As a result, Monroe offered a special deal, combining their state of the art Model 20 LED-Display, rechargeable handheld calculator, with the now aging Monroe 990 Nixie-display desktop calculator (circa 1969), for a package price of $750. Early in its lifetime, the 990 sold for $1250 by itself. The ad lists $854 as the price if the two machines were purchased separately. Given this, it's clear that Monroe was trying to unload an inventory of their older-technology calculators by selling them off with the latest and greatest technology, at deep discounts.