The Music City Jr is a fine guitar with a Glaser system , strap actuated at the upper bout, like a Tele. Not at the neck plate like a traditional Glaser system. Its also can be changed from a B to a G , or vice versa. I recently sold mine, not because it wasn't a fine instrument , but rather it was too different from my Telecasters . I found myself never playing it.
If you can find a nice one , expect to fork over around $2 grand.
One thing of note, the fret board is UNFINISHED and can get dirty in a hurry. I added 3 coats of semi gloss clear to mine. Also, the neck, while pretty slim, is a 12" radius with frets near .050 tall. I had mine dressed down to Fender height, approx .045. Makes a huge difference for lighter gauge string choices.
Other than that, a great hi quality guitar ,( USA BORN) its no wonder they only made them for 2 years, and according to Joe Glaser, maybe only around 400 in total. I suspect Gibson was loosing their shirt on them selling them new for around $1300 !