1. A stereoscopic endoscope system comprising a stereoscopic endoscope, the stereoscopic endoscope system comprising: the stereoscopic endoscope comprising: an endoscope body; a right image pickup section provided on a right side of the endoscope body and acquiring a right eye image; a left image pickup section provided on a left side of the endoscope body and acquiring a left eye image; a right memory associated with one of the right image pickup section and the left image pickup section and storing correction information for right for correcting the right eye image so that the right eye image is for stereoscopy, and right identification information for identifying that what is stored is the correction information for right; a left memory associated with another of the right image pickup section and the left image pickup section and storing correction information for left for correcting the left eye image so that the left eye image is for stereoscopy, and left identification information for identifying that what is stored is the correction information for left; a right output section provided on the right side of the endoscope body and outputting one of a first identification information/image set constituted by the right-eye image and one of the right identification information and the left identification information associated with the right image pickup section and a second identification information/image set constituted by the left eye image and another of the right identification information and the left identification information associated with the left image pickup section at time of a manufacturing inspection; and a left output section provided on the left side of the endoscope body, and outputting another of the first identification information/image set and the second identification information/image set at the time of the manufacturing inspection; and an identification information combining section capable of performing image combination of an image and identification information of an identification information/image set inputted from the right output section to output a combined image as a right output image and performing image combination of an image and identification information of an identification information/image set inputted from the left output section to output a combined image as a left output image.