This is an Atari 2600 clone made by Coleco and marketed in US and
Europe for a limited period of time. It is a pretty rare system and I
have never saw one for real. In Europe it was sold with two Coleco
titles: Wizard of Wor and Mouse Trap.
In North America (and in particular in Canada) the systems seems to be not so rare since you could find some of them pretty easily in second hand shops!
The system was marketed by Coleco as a cheap alternative to the high-end Colecovision system and was an Official clone since at the time the Connecticut Leather Company had the right to produce and sell systems based on the VCS technology.
Note the strange joystick-paddle hybrid that came with the system.
In Europe it was marketed by CBS Electronics and it was sold at the same price of the official Atari 2600 (that came with no games at the time).