Well you know your gibson!
The neck has in fact been broken once, I guess it's true the necks are fragile.
I bought it used at a small guitar shop 8 years ago. It's in bad shape. I always wanted to restore it but I don't trust the techs in my town. I'm from a small 30 000 souls town and I'm about a 6 hours drive away from a good technician.
I'll be honest, even if it's in bad shape I'm too afraid to let someone fool around with it. So it probably doesn't have a great value on the market.
I'll probably check for original type pickups.
I just checked the serial like you suggested. A good thing I did, the guy who sold it to me didn't look very far.
It would seem like I don't have a 67 but a 74 or 75 since in the back of the neck it's printed 400 047 and MADE IN USA. Ouch!
The thing is I can't figure out which model it is since It porbably as been modified a lot.
Here's a small description. Original color would be cherry, as been changed to dark wood. 2 tone, 2 volumes, three way switch. Chrome hardware. Pickguard probable has been changed. 22 fret with pearl block inlay. Gibson written in pearl on the head but no logo. Serial 400 047 and MADE IN USA printed on the back of the neck. And it's a lefty!
I looked around the gibson site but can't find that model.
I guess it's probably not that old. That's what you get for trusting a saleman...