The 125 existed in many forms: T for thinline (1/4 body), C for cutaway, D for humbucker with two P90s, and sometimes TD, TC, TDC, DC, and so on. It was Gibson's entry-level archtop, and its narrower body compared to a 175, for example, made it suitable for genres like rock, blues, etc. This particular one is the 1/2 body model, the same size as an ES-335, with two P90s and a cutaway: much rarer than the 125 model and more versatile! This one has just had a neck rest restored by Paris Guitar Rescue. It's original except for the case, tuners, and nut. Very playable, with a superb patina, and the sound is... wow!