This is a 126 film cartridge camera introduced in 1975 that used the self contained flashcube so it needed no batteries. It has a thumb lever film advance that would turn the flashcube to the next side. Once you used all four sides you had to remember to replace the flashcube with a new one.
The flashcube was called Magicube (or X-Cube) and was superficially similar to the original Flashcube. However, the Magicube did not require electrical power- each bulb was set off by a plastic pin in the cube mount that released a cocked spring wire within the cube. This wire, in turn, struck a primer tube, at the base of the bulb, which contained a fulminate. The fulminate ignited shredded zirconium foil in the flash and, thus, a battery was not required.