“Q” is for the Olympus Quickmatic, a camera for 126 cartridge film.
We have two Quickmatics in our collection.
Both Quickmatic here were manufactured in 1967. The EES has a hot shoe for the flash.
The Quickmatic EEM lacks the hot shoe. Both cameras employ zone focusing, rather than a coupled rangefinder or through-the-lens focusing.
The other cameras featured in this A to Z Challenge are linked on this page.