For future reference, when photographing a pen, especially for identification purposes, one MUST shoot the picture such that the pocket clip is clearly visible! Since that is THE prime location for the manufacturer's logo and occasionally includes clues to the specific model or year of manufacture, it need to be seen. You get points for showing the Nib, but a shot of the underside of the nib can also be helpful.
Glad you found the info you were looking for. Now that you know what it is, take it to the trash immediately; those Sheaffer Agios are wretched little pens!